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Specifications Specifications are subject to change without notice or obligation. Configuration Standard half-size expansion card Interface 8-bit ISA-bus connector COM ports and interrupts Supports Microsoft Plug and Play version 1.0a - for automatic configuration under Windows 95 Fax modes Supports Group 3 send and receive facsimile using fax service class 1 (EIA/TIA-578) and Class 2.0 (EIA/TIA-592) commands, DCE Control Standard; supports V.29, V.27 ter, V17, and V.21 channel 2 recommendations for sending fax at 14,400, 9600, 7200, 4800, 2400 or 300bps with automatic sensing and adjustment Data modes Supports ITU-T V.34 [annex], V.34, V.FC, V.32bis, V.32, V.22bis, V.22, V.21, Bell 212A and 103 Enhanced protocols DSVD v1.2: Digital Simultaneous Voice/Data Mode using TrueSpeech® I (TrueSpeech® 8.5) Compression; V.80: Synchronous mode for VideoPhone support; x2: allows connections to x2 host equipment up to 53,000 bps Loopback testing V.54 analog, digital, and remote digital Modem speed Operates in data mode at speeds up to 33,600 bps; data compression increases effective throughput (depending upon the file structure); fax mode at speeds up to 14,400 bps Error correction V.42 (preferred) and MNP2-4 (fallback) for error-free operation over noisy telephone lines; modem also operates without error correction Data compression V.42bis and MNP5; up to 115,200 bps throughout; modem also operates without data compression Automatic negotiation For ease of operation, the modem automatically negotiates with the remote modem, adjusting speed, error control, and data compression for maximum efficiency and compatibility Compatibility Communicates with virtually any modem adhering to ITU-T or Bell standards. The maximum rate of 33,600 bits per second is attainable only with other modems that support V.34 [annex] or similarly equipped US Robotics modems. Modems (such as the US Robotics HST or Telebit PEP) using proprietary protocols are not compatible with the TelePath modem for Windows with x2 at speeds above 2400 bps. This modem supports asynchronous operation. Ringer equivalence 0.4B Modem command set Enhanced AT command set, compatible with Hayes™ V-series commands Telephone lines Operates over dial-up lines; auto-answer, originate with tone or pulse Onboard diagnostics Remote and local digital and analog loopback; power-on self test Connectors Two RJ-11C modular phone jacks for line and telephone connections Audio monitor Onboard speaker Certification UL, FCC Class B, FCC Part 68, DOC, CSA Many Gateway 2000 products are custom engineered by our suppliers to Gateway 2000 specifications, and may vary with similarly marketed products.   Introduction Your TelePath® modem for Windows with x2 provides you with a cost-effective way to handle almost all your computer communications requirements, including voice, data and fax transmissions. This modem features automatic negotiation, allowing it to connect with modems from many manufacturers. It also has the popular SpeakerPhone feature, which now gives you the convenience to freely perform other functions while speaking on the phone.   Hardware As a data modem, the TelePath modem for Windows with x2 adheres to ITU-T V.34 recommendations. This means the modem is capable of full duplex operation at speeds up to 28,800 bps (28.8) over dial-up telephone lines. Modem speeds up to 33,600 bps are possible when connecting with another V.34 [annex] modem — such as an identical modem or certain V.34 modems made by US Robotics. As with any modem, the highest communications speeds are possible only under ideal conditions. If noise that could cause errors is present on the telephone lines, the modem will automatically compensate by reducing transmission speed. The Telepath modem for Windows with x2 also supports the latest x2 technology from US Robotics. When connected to x2 host mode equipment, the modem can download up to 56,000 bits per second on a perfect line (current FCC regulations limit the transfer rate to 53,000 bps). Upload transfer rate remains at the standard V.34 rate. A new feature of this modem allows Digital Simultaneous Voice and Data transmissions (DSVD) using TrueSpeech® I compression for voice information. In this mode, the modem is actually sending voice at the same time that it is sending and receiving data. This enables applications such as document sharing and interactive games. The other modem must support the same version of DSVD (v1.2).   Software The TelePath modem for Windows with x2 has excellent data communications and fax send/receive software. For data communications, it supports the full AT command set with enhanced Hayes V-series commands. As a fax modem, the TelePath modem for Windows with x2 supports Group 3 facsimile send and receive, which allows it to communicate with nearly every fax machine in the world. It accepts Class 1 and 2.0 commands. This lets the modem function with nearly all popular communications software packages. With the appropriate software, the TelePath modem for Windows with x2 can provide you with voice mail management. Using this feature, you can play or send voice greetings and record messages like a standard answering machine. It provides a feature that allows you to remotely access your voice messages. The modem automatically detects and deals with fax or voice calls. The modem also detects Caller ID data if it is available. Caller ID Support allows you to identify who is calling before you answer the telephone. Call your local telephone company to make sure Caller ID is available in your area. The application software included with the modem can display the caller identification information if it is available. The modem supports Distinctive Ringing if available. Distinctive Ringing is a service provided by your local phone company. Distinctive Ring can ring your line so that you can have more than one number assigned by the Central Office to the same physical line in your home. A common use of this feature would be to have fax calls coming in on one number and voice calls coming in on another. Then, when you get a call and the ring is different, you know that your "fax" number was dialed and that you shouldn’t answer as you would a normal voice call. Your modem can recognize different types of Distinctive Ringing. Please check with your phone company regarding which types are available in your area. The SpeakerPhone feature provides you with a full-duplex speaker phone without the echoing effect found on many speaker phones. With the TelePath modem for Windows with x2, you are now able to enjoy this "hands free" convenience without additional hardware and cords for your home and/or office.   Fax/modem features Full-duplex speaker phone capability Plug and play compatible Operating modes V.34 [annex], V.34, V.32bis, V.32, V.22bis, V.22, V.21 Bell 212A and 103 V.17, V.29, V.27ter, V.21 channel 2 DSVD v1.2: Digital Simultaneous Voice/Data Mode using TrueSpeech® I (TrueSpeech® 8.5) Compression V.80 Synchronous mode for video phone support x2: Allows connections to x2 host equipment at up to 53,000 bps Group 3 send and receive facsimile Error correction (V.42/MNP 2-4) Data compression (V.42 bis/MNP 5) Communication software command sets Enhanced AT command set Fax class 1 and 2.0 commands Built-in DTE interfaces DTE speed to 115,200 bps Parallel 16C550 UART interface Line quality receive level monitoring NVRAM directory stored profiles and four phone numbers Programmable speaker volume control Flow control (XON/XOFF, RTS/CTS) Inactivity timer Displays help screens, modem settings, call progress Automatic format/speed sensing Voice mail capability Distinctive Ring capability, where available Caller ID capability, where available Diagnostics Remote digital loopback and self test Analog loop and analog loopback self test Digital loopback test Power-on self test.   Installing the TelePath modem   To install the modem: Turn off the computer system. Remove your system’s cover. Before opening your system case, read and follow these preventions and precautions to prevent damage from static electricity. Caution! Preventing Static Electricity Damage The components inside your system are extremely sensitive to static electricity, also known as electrostatic discharge (ESD). Static electricity can cause irreparable damage to your system; however, if you follow these preventions and precautions, you should prevent such damage. Static Electricity Preventions WEAR A GROUNDING WRIST STRAP (available at most electronic stores). Turn off the system power. Touch the back of the power supply fan, located on the back of the case. UNPLUG ALL CORDS FROM WALL OUTLET. Remove the system case cover. Static Electricity Precautions Avoid static-causing surfaces such as plastic and styrofoam in your work area. Remove parts from their antistatic bags only when you are ready to use it. Do not lay parts on the outside of antistatic bags since only the inside provides antistatic protection. Always hold cards by their edges and their metal mounting bracket. Avoid touching components on the cards and the edge connectors that connect to expansion slots. Never slide cards or other parts over any surface.   Remove the modem from its anti-static bag. Note: The expansion card fits into a slot on the system board. We suggest you install the modem in the slot nearest the outside corner for desktop systems. For tower systems, install the modem in the bottom slot. You may need to temporarily remove the existing expansion card (if one exists), and reinstall it in another card slot after installing the modem. Locate the recommended expansion slot and remove the screw that holds the metal strip in place. Remove the metal strip and keep the screw. Recommended slot for modem Typical desktop, tower is similar Note: If you ordered your modem without SpeakerPhone, ignore Steps 5, 6, & 9. Before inserting the modem into the slot, locate the SpeakerPhone cable that was shipped with your Telepath modem. Carefully connect one end of the cable to the J2 ATAPI connector, located near the top of the Telepath modem expansion card. Do not handle the ISA bus connector or the other delicate components located on the card. The cable connector is keyed so that it fits in the J2 ATAPI connector when it is inserted properly. Note: Make sure the modem is installed with the card components facing the inside of the computer. The card should also be installed in an expansion slot next to the sound card because you will need to connect them both with a small SpeakerPhone cable. Speakerphone cable. Connects to the J2 ATAPI connector on the modem card. Close-up of cable connecting to the ATAPI connector, located near the top of the modem. ISA bus connector. Press the modem straight into the slot. Make sure that you push evenly on both edges until the card is firmly seated. You may need to press in on the bottom of the metal bracket to keep it from catching on the case. It’s OK to slightly seesaw a card end-to-end as you work it into the slot, but do not bend the card sideways. Secure the card to the case with the screw you removed in step 4. Locate your sound card. If your sound card is an EnsoniqTM Vivo 90 card: Carefully connect one end of the SpeakerPhone cable to the J1 ATAPI connector, located near the top of the expansion card. Attach SpeakerPhone cable to J1 ATAPI connector If your sound card is a Sound Blaster 16 card: Temporarily remove the sound card from its expansion slot. This is necessary because of the location of the J3 header (1). Carefully connect the other end of the SpeakerPhone cable to the J3 header on the sound card. It has four pins on which the SpeakerPhone cable fits. J3 Header (4 pins) Note: The J3 Header pins on the Sound Blaster card are not keyed, and therefore do not insure error-free connection. Make sure when the SpeakerPhone cable is connected that the grips are positioned toward the inside (1) of the system [away from the ports on the card and the back of the system (6)]. Cable connector grip oriented correctly, facing the inside. Sound card. Telepath modem card. SpeakerPhone cable. Screws Back of system Reinstall the Sound Blaster sound card into its expansion slot after connecting it to the SpeakerPhone cable. The cable now connects the Telepath modem card and the sound card. FONT FACE="Arial" SIZE=2>Replace the screw securing the card to the system chassis. Check all cable connections and replace the system unit cover. You are now ready to connect the telephone and modem.   Connecting the Telephone and Modem   To connect the telephone and modem: Connect the Telepath modem’s lower jack on the side of the modem to the telephone jack on the wall. A short cable is provided for this purpose; you can use a longer cable if necessary. If you unplugged a telephone to connect the modem, you can plug the cable from the phone into the top jack on the modem. The telephone will operate normally even when the computer is off. Plug in the line from telephone here. Plug in line from telephone wall jack here. Side view of modem.   Configuring the TelePath modem The following section has two segments: For Windows 95 systems (utilizing Plug and Play) and For Windows 3.1 and Windows for Workgroups. Go to the appropriate segment that applies to your computer system. Note: Your modem will not operate under the MS-DOS environment. The modem relies on the Windows operating environment to function correctly. The modem is designed to work with Windows applications, however, most MS-DOS programs that use a modem will work with the modem as long as you are running that program in a DOS window under Windows 95 or Windows for Workgroups.   For Windows 95 systems   To configure the modem: Power up the computer system. The New Hardware Found dialog box automatically appears after Windows 95 startup. The system recognizes the new hardware (modem and/or sound card) and prompts you to select which driver you want to install for your new hardware. Click on Cancel. The drivers for the modem will be installed later. Use the right mouse button and click on My Computer, then select Properties. Click on the Device Manager tab, then locate Ports in the "device tree." Click on Ports, then click on + (located next to Ports), or double-click on Ports. This will create another level in the "device tree" and will display the system’s Communications Ports and the Printer Port. Locate the Communications Port labeled COM 2 and click on it. Click on Properties or double-click on COM 2. The General tab is displayed first, and a box at the bottom displays Device Usage. Click on the box next to Original Configuration; this will remove the check mark in the box. Depending on your version of Windows 95, you may see "Disable in this hardware profile." Place a check mark in the box by clicking on it. Click on OK. The Communications Port (COM 2) will have a red "X" on it. The modem will be configured to utilize the system resources that have just been freed up in the above steps. Click on Close, then click on Start. Click on Shut Down, click on Restart the computer, then click on Yes. The system will restart. While the system is restarting, press the <F1> key when you see the prompt "Press F1 For Setup." This will enter the CMOS Setup utility to allow you to check the port settings. Note: Consult the Technical Reference that shipped with your system if your CMOS differs from that discussed here. Use the right arrow to highlight Advanced, then highlight Peripheral Configuration and press <Enter>. Highlight Configure Mode: press <Enter> and select Manual (system may also default to Manual). Then use the down arrow to select Serial Port 1 Address (make sure it is set to COM 1 3F8 IRQ4). If it is not, press <Enter>, change the setting to: COM 1 3F8 IRQ4 and press <Enter> again. Use the down arrow to select Serial Port 2 Address. Press <Enter>, select Disabled and press <Enter> again (port may already be disabled). Press< F10>, then press <Enter> to save and exit the Setup utility. This will cause your system to restart. The New Hardware Found screen reappears when Windows 95 restarts. Depending on your version of Windows 95, The Update Device Driver Wizard may appear. Locate the Telepath modem for Windows with x2 Technology diskette that was shipped with your modem and insert it into your floppy drive (A). Click Driver Disk Provided by Hardware Manufacturer, then click OK. The Install From Disk dialog box appears, prompting you to insert the manufacturer’s installation disk into the drive selected. If your version of Windows 95 uses the Update Device Driver Wizard, you will have to click on Next instead. After the wizard has found the drivers, you should click on Finish. Make sure that the drive letter and path in the box match the location where the diskette is loaded (i.e. A:\). Then click OK. If your version of Windows uses the Update Device Driver Wizard, you may encounter an error. If this is the case, click on OK, and a "Copying Files. . ." dialog box should appear. Type: A:\ (or the drive and path to the drivers) in the box labeled, "Copy Files From:" and click OK. Note: A red "X" or a yellow "!" will be displayed next to COM2 in the "Ports" section of your system’s Device Manager. This means the COM2 port has given up its resources so that the modem can function with a wide variety of software applications. A new port, labeled "TelePath for Windows with x2," will be displayed. This port must be present for a Windows-type modem to operate properly. Make sure COM2 is selected as the COM port for your modem. If not, please review steps 2 through 20. Remove the installation diskette and click OK. When a screen appears recommending you restart Windows, click Yes. Once the configuration is complete, install the communications software using the diskette or CD. Go to the section titled, "Installing the FaxWorks Software" and follow all instructions provided. Note: If you reinstall Windows 95 and are experiencing problems with your modem, perform the following steps. Click on the Start button, Settings, and Control Panel. Double-click on the TelePath for Windows with x2 icon. If no such icon exists, continue with Step 4. In the TelePath for Windows with x2 window, click on the Uninstall button. Follow the on-screen instructions to uninstall the modem. Continue with Step 4. In the Control Panel window, double-click on the Modem icon. If the Add New Hardware wizard starts, click Cancel and close the Modem window. If the Add New Hardware wizard does not start, click on any listed modem to highlight it and click on the Remove button. Repeat this procedure until all modems are removed. Click on the Start button and Shutdown. Select Restart my computer and click on OK. The system restarts. If the Found New Hardware wizard appears on-screen as the system starts Windows 95, click Cancel. When Windows 95 has finished starting, right-click on the My Computer icon and select Properties from the menu that appears. Click on the Device Manager tab. Double-click on the heading labeled Other Devices. If a heading labeled TelePath for Windows with x2 appears under the Other Devices category, highlight it and click Remove. Click Close. Click on the Start button and Shutdown. Click Yes to confirm that you want to shut down the computer. When the shutdown process is complete, turn off the computer. Begin with Step 1 in the section "To configure the modem."   For Windows 3.1 and Windows for Workgroups   To configure the modem: Power up the computer system. Enter the CMOS setup utility. Disable the COM2 port. Note: Consult the Technical Reference that shipped with your system if your CMOS differs from that discussed here. Exit and reboot. (See the sections about the COM ports and the Setup utility in your system’s user’s guide for details.) Type:win at the C:\ prompt if your system doesn’t automatically boot into Windows. Click on File and Run from the Program Manager. Type: a:install on the command line provided and press <Enter>. A TelePath modem installation screen appears. Click on the Continue button to accept drive and directory default designations. Another screen appears requesting verification of your selections. Click on Yes. Once the drivers are installed, click OK to accept the changes to the Windows configuration files. A COM port search screen appears. Click on OK to begin the search for available COM ports. Make sure COM2 is selected as the COM port for your modem. If not, please review steps 2-8. Click OK. A screen appears recommending you restart Windows, click Restart Windows. Once the configuration is complete, install the communications software using the diskette or CD. Go to the section titled, "Installing the FaxWorks Software" and follow all instructions provided.   Adjusting the Modem You can adjust the settings of the TelePath modem for Windows with x2 if necessary. To change the settings you must use the configuration utility installed by the setup program. If you purchased the modem with your system, this program was installed for you. If you installed the modem correctly, this software has been installed in your system.   For Windows 95 systems   To adjust the modem: Click on the Start Button. A list of options appears. Click on Settings in this list. Another list appears. Click on Control Panel in this list. A window displaying icons appears. Using the left mouse button, double-click the TelePath modem for Windows with x2 icon in this window. A Properties dialog box containing a number of options appears. Select (click on) these options as instructed below: Use Automatic Settings: When a check mark is shown in the box next to this option, the modem chooses its COM port automatically. This setting is recommended in order to maintain compatibility with other Plug and Play devices. (When no check mark is visible, you must manually select the modem’s COM port and change the settings for the programs you use with your modem to match that selection.) Force COM 1-4: When a check mark is shown in the box next to this option, the modem software is forced to choose a COM port number between 1 and 4. This setting is recommended in order to maintain compatibility with older programs and most DOS applications. (When no check mark is visible and Use Automatic Settings is enabled, the modem might be assigned a COM port number higher than 4, which may not work with some software.) Enable DOS boxes: When a check mark is shown in the box next to this option, the modem allows you to use DOS programs in a window with the modem. Most DOS programs are compatible with this option, but you must be in Windows (either full screen or within a smaller window) to use the modem. (When no check mark is visible, DOS programs will not run with the modem.) COM port: This option can be used ONLY if Use Automatic Settings is disabled (see above). Click on the down arrow box to view a drop-down menu of COM port options. Click on one of these options to select that COM port for the modem. Uninstall button: DO NOT use this button unless you are absolutely certain you wish to remove the modem and its drivers. (See "Removing the Modem" in this section of this manual for details.) Click OK to save any changes you’ve made. (Click Cancel to abort these changes.)   For Windows 3.1 and Windows for Workgroups   To adjust the modem: If the Program Manager window is not open, double-click the Program Manager icon to open it. If the TelePath modem for Windows with x2 group window is not open, double-click to open it. Double-click the Configurator icon to view the Configuration dialog box. Select the following options as instructed below: Let Plug & Play configure the card at power up: When a check mark is shown in the box next to this option, the Plug and Play configuration program automatically assigns the modem’s resources. This setting is recommended. (When no check mark is visible, Plug and Play configuration is disabled.) IRQ: If the Plug & Play configuration option is enabled, this option is grayed out and cannot be set manually. To set this option manually, disable the Plug & Play option. Then select (click) an IRQ from the list shown. Note: The resources shown in this graphic will not match standard COM port I/O address and IRQ settings. The IRQ and the address are resources that the modem drivers need to communicate with the modem card. I/O Address: If the Plug & Play configuration option is enabled (see above), this option is grayed out and cannot be set manually. To set this option manually, disable the Plug & Play option. Then select (click) an I/O Address from the list shown. Ports button: Click this button to select which port your modem uses. If you change this option from its factory setting, check your communications software setup to make sure it matches the new port setting. Click OK to save any changes you’ve made. (Click Cancel to abort these changes.)   Removing the Modem The following sets of instructions describe removing the modem drivers and software in both the Windows 95 and earlier version of Windows operating systems.   For Windows 95 systems   To remove the modem’s drivers: If you find it necessary to remove the modem and its drivers, follow this procedure. Click on the Start Button. A list of options appears. Click on Settings in this list. Another list appears. Click on Control Panel in this list. A window displaying icons appears. Using the left mouse button, double-click the TelePath modem for Windows with x2 icon in this window. A Properties dialog box containing some settings for the modem and a large Uninstall button appears. Click the Uninstall button. Another dialog box appears asking you to confirm your choice. Click on OK. The drivers for the modem will be removed from your system.   For Windows 3.1 and Windows for Workgroups   To remove the modem’s drivers: If you find it necessary to remove and reinstall the drivers for the modem card or to completely remove the modem and its drivers, follow this procedure. If the Program Manager window is not open, double-click the Program Manager icon to open it. If the TelePath modem for Windows with x2 group window is not open, double-click to open it. Double-click the Uninstall icon in this group. A dialog/warning box asking you if you really want to remove the modem appears. Click on Yes. The drivers will be removed from your system. If you need to reinstall your modem and its drivers, follow the instructions located in the previous section of this manual.   Settings This section provides an overview of basic modem settings. We recommend you use all of the modem’s factory settings except for flow control and the serial port rate. Note: If you have installed the modem in Windows 95, all setting selections have been made. Any time you wish to change the modem’s settings or give it instructions, you use AT commands. (These commands are fully explained in the chapter titled, "Using the Telepath modem for Windows with x2" and in the "Command Summary." For now, just remember to type in the following command lines as instructed.)   Modem settings We recommend the following settings for most situations. Note that to use these recommended settings, your software must also support them (see the following section, "Software settings"). Transmit Data Flow control is factory set as disabled (AT&H0); we recommend that you enable this function. To do this, enter your software’s terminal mode and press <Enter>. The modem sends Clear to Send (CTS) signals to the computer to control the data flow. Flow control is required for error control and when the serial port rate is higher than the connection rate. (The AT&H2 setting, software flow control, may affect data reliability.) Received Data Flow control is factory set to ignore received data (AT&R1); we recommend that you change this function. To do this, enter your software’s terminal mode and press <Enter>. The computer sends Request to Send (RTS) signals to the modem to control the data flow. Note: You can also write the modem’s default settings into the software’s modem setup (also called the initialization string) by using the &F1 command. The &F1 command loads all the previously mentioned settings automatically. If you are using FaxWorks, the proper settings are configured automatically for you. You do not need to change any of the modem setup commands or initialization strings. If your software supports AT&H1 and AT&R2, we recommend that you make them your power-on and reset defaults by writing them to nonvolatile memory (see the section "Storing defaults in NVRAM").   Software settings Hardware flow control: Select your software’s option for hardware flow control. Many programs combine both hardware flow control commands, CTS/RTS (Clear to Send/Request to Send), as one option. Some software supports both hardware and software flow control, but requires you to turn off the kind you’re not using. Check your software manual. 57.6 or 38.4Kbps: Set a high serial port rate between the modem and the computer. A rate of at least 38.4Kbps is required to make a 28.8Kbps connection. In most operating systems, 115,200 bps is best when a call is under error control and data compression. If you are certain that your software can handle 115,200bps, you can use this speed. We recommend that you use this high speed only if necessary. If part of your system can’t handle it, you could lose data. If you’re not sure of your system’s capabilities, use 57.6Kbps, which is efficient and reliable. Fixed Rate: Many programs that support a fixed serial port rate control this function with an Auto Baud Detect toggle. Toggle Auto Baud Detect OFF and the software serial port rate will remain high, even if the phone connection is as low as 300 bps. Your software may call this Locking the Port Speed.   Changing settings When you change a setting, the modem retains it until you do one of the following: Change the setting again. Issue the ATZ command to reset the modem. Issue the AT&Fn command to reset the modem to one of its factory settings. If you are in Windows or any other program, exit Windows (and all the other software) and switch the system off and on again. The modem loads the factory settings.   Storing defaults in NVRAM If you change the modem’s settings from their default values and want to save these changes as new power-on and reset values, you can write them to nonvolatile memory (NVRAM). Follow the instructions below to save changes. The default settings and other AT command options are fully explained in the chapter titled, "Using the TelePath modem for Windows with x2" and in the "Command Summary."   To store settings in NVRAM: Boot the computer and enter your communication software’s terminal mode. Set the communications parameters and other settings you want with the appropriate AT commands or menu selections in your software. For example, if you want the comma (pause) to last for one second instead of the default two seconds, type: ATS8=1 &W and press <Enter>. Be sure to type &W last in the string. The &W writes all the settings you have made into NVRAM. It is not necessary to enter the settings one at a time. You can make several settings on a line, then use the "&W." Now the modem loads the defaults from NVRAM at power-on and reset. If you set the modem correctly, it is almost impossible to lock up communication between your system and the modem. If it should happen, however, enter the command AT&F1 in terminal mode. This loads the permanent factory settings. Then insert the correct setting in a new &W command.   Testing the Modem Installation Follow these steps to verify that the modem is working properly (see the chapter titled, "Using the Telepath Modem for Windows with x2" and the "Command Summary" for details on changing settings with AT commands). Load your communications software and enter the terminal mode. Set the serial port rate to 115,200, 57,600, 38,400, or 19,200 bps. We recommend 57,600 or 38,400. Set the software to the serial port used by the modem: COM 1, 2, 3, or 4 (default is COM 2). Set the data format to a word length 8 bits with no parity and 1 stop bit. In the terminal screen, type: AT E1 Q0 V1 and press <Enter>. "OK" should appear on the next line.   SpeakerPhone Feature The SpeakerPhone feature of the TelePath modem for Windows with x2 provides you with full-duplex speaker phone use without the echoing effect found on many speaker phones. A compatible sound card is necessary in order for the SpeakerPhone functions to operate correctly. If you do not have a sound card, or you have a sound card that is incompatible with the SpeakerPhone cable, you will not be able to use the SpeakerPhone features.   Activating the SpeakerPhone   To activate the SpeakerPhone: Locate the microphone that was shipped with your kit. The microphone supplied with the modem is recommended for use of the SpeakerPhone feature. Connect the microphone cord to the MIC jack, located on your sound card. This enables the SpeakerPhone features of the modem. You are now ready to use the SpeakerPhone. If you have a sound card, make sure the speakers are connected to the output jack on the sound card. The speakerPhone (optional purchase), kit contains the following: Microphone cord Microphone Desktop stand Microphone holder Optimizing use of the SpeakerPhone feature: Make sure the microphone and the speaker(s) are one to three feet apart, and not directly facing each other. This helps to avoid acoustical coupling, which causes a squealing or echoing effect. In some situations (noisy office, etc.) the modem may find it difficult to achieve satisfactory level of full-duplex operation; in this case the modem will fall back to a half-duplex mode of operation. When in half-duplex mode, only one party can speak at a time. If the modem finds it possible to go back into full-duplex mode it will do it automatically. You may hear a soft popping sound when the modem switches duplex modes. By accessing the software application program that was shipped with the modem, the modem SpeakerPhone parameters are automatically loaded. This initiates the useful features of the SpeakerPhone function of the modem. The software has on-line help available by pressing the <F1> key at any time the application is running. Refer to the online manual in the application for operating instructions and further details.   Basic Operating Information This chapter provides an overview of basic operating information for your TelePath modem for Windows with x2.   Setting the mode The modem has three modes of operation: voice, data and fax. The normal operating mode for the TelePath modem for Windows with x2 is data mode. If your fax software is typical, it automatically switches the modem to fax mode when you run the program, and resets the modem to data mode when you exit the program. If you think the modem may be in the wrong mode, type in the following command: AT+FCLASS? and press <Enter>. The modem returns a "0" to indicate data mode or a "1" to indicate fax mode. To manually switch to data mode, type in the following command: AT+FCLASS=0 and press <Enter>. To manually switch to fax mode, type in the following command: AT+FCLASS=1 and press <Enter>. When you reset the modem with the ATZ command, toggle the DTR signal, or turn the power off and on, the modem resets to data mode.   Voice/data communication To start a data call from a voice call, contact the other user to establish the parity, number of data bits, and number of stop bits. Then, to turn the call over to your modem: Without hanging up the phone, have your modem go off hook in Originate mode. Type: ATD and press <Enter>. Be sure the modem is not set to ATX2 or ATX4, or it returns the NO DIAL TONE result code and hangs up. The other party should have the remote modem go off hook in Answer mode. Type the following command to do this: ATA and press <Enter>. Now both of you can hang up your phones. Either device can be the originate or answer modem; it doesn’t matter who made the phone call. But one modem must enter Originate mode and the other must then enter Answer mode.   Fax operation The TelePath modem for Windows with x2 supports ITU-T V.17, which can send and receive faxes at speeds up to 14.4Kbps. Your modem can also send and receive Group 3 faxes. Using your fax modem for facsimile operations requires compatible facsimile software.   Fax mode flow control setting Many facsimile software products use software flow control when the modem is in fax mode. However, we recommend that you set your modem for hardware flow control (&H1) for fax mode. The fax software provided with your modem automatically enables hardware flow control when the modem is in fax mode. However, if you use other fax software, you must enable hardware flow control by entering the AT&H1 command. See the "Command Summary" for information on the &Hn command.   Troubleshooting You may occasionally encounter a problem listed here. Problems are divided into two categories: before and during the transfer of data over the phone link.   Before data transfer Problem Solution Your modem doesn’t answer the phone or go off hook to dial a number. Review your software manual to see what DTR operations your software requires. Then use the appropriate AT&D command. Your modem doesn’t respond OK when you type AT. Make sure you’re typing in either upper case or lower case letters (not both), and press <Enter>. Make sure your computer is in terminal mode. This is a communications software function. Check to see that your software is set to the correct connection rate and word length (7 bits with or without a parity bit, or 8 bits and no parity). Also make sure your software is set to the correct serial port, as determined in the setup instructions. Review your communications software manual to see what Carrier Detect (CD) operations your software requires. Then use the appropriate AT&C command. Your screen displays double characters. Both your modem’s and software’s local echo are on. You can turn your software’s local echo off, or turn the modem’s echo off by sending the modem the ATE0 command. Your computer reacts as though a data link has been established, but no call has been received. Review your communications software manual to see what CD (carrier detect) operations are required. Use the appropriate AT&C command. When the modem is in answer mode, the computer acts as if a carriage return was entered, but nothing was typed. Your software may be misreading the modem’s signals as it sends a carriage return and line feed before and after the RING and CONNECT messages. Send the quiet mode command (ATQ1). Both modems exchange carrier signals, but fail to establish a communications link. Make sure you are in the correct mode (data or fax) for the call you are receiving. The modem must be in data mode to receive a data call, and in fax mode to receive a fax call. Make sure that you have set the software to the same word length, parity, and number of stop bits required by the remote computer and, if your modem is dialing out, also make sure that your software is set to a bit (or baud) rate equal to or higher than that of the remote modem. Make sure the modem at the other end of the line is V.34 compatible at 33600, 31200, 28800, 26400, 24000, 21600, 19200 and 16800 bps (bits/per second); and/or V.32bis compatible at 14400, 12000, 9600, 7200 and 4800 bps; and/or V.32 compatible at 9600 and 4800 bps; and/or V.22bis compatible at 2400 bps. These are common signaling standards for full duplex dial-up networks in the U.S. Make sure that your modem’s connection rate setting, AT&Nn, is correct for the call. If the connection rate is locked at a speed (AT&N1ñAT&N14) different from the calling modem’s, the TelePath modem hangs up. The factory setting of &N0, variable connection rate, allows the two modems to negotiate the highest possible connection rate. If these steps fail to correct the problem, the connection is poor and the other modem is missing the signals your modem is transmitting. The quality of phone line connections may vary due to conditions in the environment or the phone company’s equipment. Try again, and if you still can’t get through, try calling another modem. If the second modem accepts your call, the problem may lie with the first modem.   During data transfer Problem Solution The screen displays brackets. Check to make sure that your communications software is set to the same connection rate as (or higher than) that of the remote modem, and that both your software and the remote system are set to the same word length, parity, and number of stop bits. If the settings are correct, the problem may be with the phone line. Try the following measures: Place the call again. The phone company routes even local calls differently each time you call. Call a different modem. The problem may be with the modem you tried to call. The screen displays random or garbage characters Check to make sure that your communications software is set to the same connection rate as (or higher than) that of the remote modem, and that both your software and the remote system are set to the same word length, parity and number of stop bits. If the settings are correct, the problem may be the phone line. If the modem is set to a fixed serial port rate (AT&B1) and your software is fixed at 38.4K, 57.6K, or 115.2K bps, the reason may be one of the following: If you use TSR (terminate and stay resident) programs, they may be interfering. Try disabling them before you run your communication software. The same is true of disk-caching programs. Check to see that your software and the modem are set for the same kind of flow control, either hardware or software. Some communication programs also require you to disable the kind of flow control you are not using. The screen display double characters Your modem’s on-line local echo is on and the remote computer is also echoing. You can handle this two ways: one is to terminate the call, hang up, turn off the on-line echo (ATF1) when the modem is in command mode, and call again. This way you do not lose any data. The other way is to force the modem into on-line-command mode by sending the escape code and then the ATFO command. This turns off the on-line echo and immediately puts the modem back on-line. Use this second method only if the remote system and modem are not in the middle of data transfer.   If you still have problems The problems described above are by far the most common ones that users encounter. If the suggestions don’t clear up your difficulties, try the following: Review the manual carefully to see if you missed something. Contact Customer Support. If it is necessary to return the modem for service, the customer service technician will give you a Return Materials Authorization (RMA) number.   Testing the Modem Modem testing is available with the AT&T command and register S16 (dial test). All loopback testing conforms to ITU-T Recommendation V.54. Only one test can be performed at a time. If you send a test command while the modem is in test mode, you get an ERROR message. The tests supported through the AT&Tn command include analog loopback, digital loopback, and remote digital loopback. You can enter your own data or use the modem’s internal test pattern and error detector. Disable error control before testing. If the modem detects errors and retransmits the affected data, your test results are invalid.   Ending a test — &T0, S18 Issuing the AT&T0 command terminates a test. Alternatively, set register S18 to a specified number of seconds, for example, S18=10. When the 10 seconds are up, the modem automatically ends the test and returns to command mode. If the test was Analog Loopback (AL), the AT&T0 command hangs up the modem. If the test was digital or remote digital loopback, issue an ATH command to hang up the modem, or an ATZ command to hang up the modem and reset it. If you use the S18 test timer, but in the process of testing you issue an ATZ command, S18 resets to zero and the timer is disabled. Also, you cannot store a value for S18 in nonvolatile memory: its power-on and reset default is always zero.   Analog Loopback — &T1, &T8 This test checks the operation of the modem’s transmitter and receiver. Data flow is shown in the figure at left. Modem/DTE indicates the modem’s interface with the computer (Data Terminal Equipment). You have two analog loopback options. The first option, &T1 involves typing data that you can verify at your screen. The second option, &T8, is an internal self-test that does not involve the keyboard or screen. It isolates the modem from the computer interface to give you a more specific result.   &T1   To conduct a manual Analog Loopback test: The modem should be on hook, in command mode. If you wish, set register S18 as a test timer. For example, insert S18=10 in the following command string before &T1. (Note that strings of commands require only an AT at the beginning.) AT &M0 S18=10 &T1 The modem disables error control, sets the timer, enters analog loopback (AL) mode, and sends a CONNECT message. Type recognizable data so that you can verify it when it is looped back to the screen. End the test. If you set S18, the modem automatically stops the test at the timeout, exits the test mode, and responds OK. If you didn’t set register S18, wait one second and type: +++ to end the test and return the modem to command mode. When the modem responds OK, type &T0 to terminate the test mode and hang up the modem. (Typing ATH has the same effect. Typing ATZ also has the same effect, but also resets the modem and restores your &W default.) If the modem sends an ERROR message, you issued an invalid command. If no errors occurred, reset the modem to AT&M4 for error control unless you issued ATZ. If the modem is in on-line-command mode, that is, still connected to a remote modem, and you send it an AT&T1 or AT&T8 command, it drops the call, enters AL mode, sends a CONNECT result and waits for loopback characters.   &T2 Reserved.   &T8 This Analog Loopback option causes the modem to send an internal test pattern to its transmitter and loop it back to the receiver. An internal error detector counts any errors and, when the test is ended, sends the number of errors or 000 (no errors) to the screen. You don’t type anything during this test, and the modem does not send anything to the screen, so this option verifies only the modem. If you get no errors but your problem continues, it may be at the computer interface.   To conduct an internal Analog Loopback test: The modem should be on hook, in command mode. If you wish, set register S18 as a test timer. For example, insert S18=10 in the following command string before &T8. (Note that strings of commands require only an AT at the beginning.) Type: AT &M0 S18=10 &T8 and press <Enter>. The modem disables error control, sets the timer, and enters Analog Loopback mode. The modem sends its internal test pattern to the transmitter, and loops the pattern back to the receiver. You do not see any data on your screen. End the test. If you set S18, the modem automatically stops the test at the timeout. If you didn’t set register S18, type AT&T0 to end the test. Or use ATH or ATZ. Both end the test and hang up. When the modem hangs up, it returns a three-digit code followed by OK. A code of 000 indicates no errors were found. A code of 255 indicates 255 or more errors. An ERROR message indicates that you issued an invalid command. If no errors occurred, reset the modem to AT&M4 for error control unless you issued the ATZ command.   Digital Loopback — &T3 If your modem has passed the Analog Loopback test, this test can help you locate a problem with a remote modem or the telephone channel. The figure at left shows the data flow during Digital Loopback (DL) testing. Modem/DTE indicates the modem’s interface with the computer (Data Terminal Equipment).   To conduct a digital loopback test: Set the modem to AT&M0 to disable error control. Establish a connection with the remote modem. Bring the modem back to on-line command mode with the +++ escape code. Then send it the AT&T3 command. The modem enters DL mode. The remote user should type a short message. It is looped back by your modem’s transmitter for verification on the remote screen. You do not see the message or any other data. When the remote user has completed the test, issue the AT&T0 command to end the test. If you wish, return the modem on-line (ATO) to resume data mode. Or type ATH or ATZ. The latter two commands end the test and hang up the modem. The modem responds OK. If the modem sends an ERROR message, you issued an invalid command.   &T4, &T5 The &T4 option causes the modem to grant a remote modem’s request for a remote digital loopback test. The &T5 option cancels &T4, so the modem refuses to recognize &T4. &T5 is the default so that your modem isn’t subject to another user calling and tying up your modem without your permission.   Remote Digital Loopback — &T6, &T7 This test, like the local digital loopback test, verifies the condition of both modems and the phone link. Data flow is shown in the figure. Modem/DTE indicates the modem’s interface with the computer (Data Terminal Equipment). The request for and granting of remote digital loopback testing requires that both modems use ITU-T V.54 standard signaling. The test must be performed at 2400 or 1200 bps. If the remote modem does not have the capability or is not set to respond, you get an ERROR result code. As with analog loopback, you have two remote digital loopback options. If you select &T6, you send keyboard data to the modem and verify it when it is returned over the phone lines and to your screen. If you select &T7, the modem sends its internal test pattern and returns an error count to your screen.   &T6   To conduct a manual Remote Digital Loopback test: Set your software to 2400 or 1200 bps. Set the modem to &M0. If you wish, set the S18 timer by typing: AT &M0 S18=10 Establish a connection with the remote modem. If you haven’t already done so, arrange with the remote user to cooperate with your testing. The remote user should set the remote modem to acknowledge the Remote Digital Loopback (RDL) request, for example, AT&T4. Bring the modem back to on-line-command mode with the +++ escape code. Send it the AT&T6 command. The modem enters RDL mode. Type a short message. It loops back to your modem by the remote modem and to your screen for verification. (The remote user does not see your data.) End the test. If you set register S18, the modem automatically ends the test when the timeout is reached. If you didn’t set S18, type AT&T0 to end the test. If you wish, return the modem on-line (ATO) to resume data mode. Or send either ATH or ATZ. The latter two commands end the test and hang up the modem. The modem responds OK. If you issue an invalid command, the modem sends an ERROR message. Data errors indicate a problem with the remote modem or the phone link. If you have not passed an analog loopback test on your modem, the problem may also lie with your modem. Reset the modem to AT&M4 unless you used ATZ.   &T7 This test option causes the modem to send an internal test pattern through the remote digital loopback. An internal error detector counts any errors and, when the test is ended, sends the number of errors or 000 (no errors) to the screen. You don’t need to type anything during this test. The modem sends only its final error count to your screen.   To do an internal Remote Digital Loopback test: Set your software to 2400 or 1200 bps. Set the modem to &M0. If you wish, set the S18 timer. Establish a connection with the remote modem. If you haven’t already done so, arrange with the remote user to cooperate with your testing. The remote user should set the remote modem to acknowledge the RDL request, for example, AT&T4. Bring the modem back to on-line-command mode with the +++ escape code. Then send it the AT&T7 command. The modem enters RDL mode. The modem sends its internal test pattern to the remote modem, which loops it back to your modem. You do not see the data on your screen. End the test. If you set S18, the modem automatically stops the test when the timer times out. If you didn’t set register S18, type AT&T0 to end the test. After you view the test results (see the next paragraph), return the modem on-line if you wish (ATO) and resume data mode. Or send either ATH or ATZ. The latter two commands end the test and hang up. When you terminate the test, the modem returns a three-digit code, followed by OK. A code of 000 means no errors were found. A code of 255 indicates 255 or more errors. If you issue an invalid command, the modem sends an ERROR message. If you performed an analog loopback and know your modem is working properly, errors indicate a problem with either the phone connection or the remote modem. Reset the modem to AT&M4 unless you sent it the ATZ reset command Dial test--S16=2 The dial test is used for factory-testing the frequencies of tone values. When register S16 is set to 2 and a single tone is dialed (for example, ATD7), the modem continues to transmit that tone until you press Enter again.   Command Summary Type commands in either upper or lower case, not a combination. Use the Backspace key to delete errors. (You cannot delete the original AT command since it is not stored in the modem buffer.) If a command has numeric options and you don’t include a number, zero is assumed. For example, if you type ATB, the command ATB0 is assumed. Every command but A/ and +++ must begin with the AT prefix and be entered by pressing the Enter key. Use the <backspace> key to delete typing errors. When you see an n, replace the n with one of the letter or numeric options listed for that command. For example, for the En command, you might type ATE1. The maximum command length is 60 characters. The modem doesn’t count the AT prefix, returns (pressing Enter), or spaces. Defaults are shown in bold. All defaults are based on the &F1 Hardware Flow Control template loaded in NVRAM when the modem is shipped.   AT commands The instructions you use to change the modem’s settings or give it instructions are called AT commands because each command line starts with the letters "AT." If you installed the fax/modem yourself and did not use the plug and play feature, you have already used a few AT commands to change some of your modem’s settings. All the AT commands, their default settings, and explanations of their function are listed in the Command Summary. Following are some general facts about AT commands: All commands except A/ and +++ must be preceded by the AT prefix and are executed when you press Enter. A command line can contain more than one command and can be up to 40 characters long, not counting the AT, spaces, or pressing Enter. In a dial string, it counts but doesn’t act on punctuation such as hyphens and parentheses. You can separate commands with spaces. The command line executes after you enter a terminating character, such as pressing Enter (ASCII 013). When you have more than one command on a line, you need the AT only at the beginning of the line. Parameters entered for AT and AT& commands (represented as the variable "n" in the Command Summary.) must be between 0 and 255. If a command requires a parameter but no parameter is entered, the modem assumes the parameter is zero. A parameter should be within whatever range is specified for its command. If the number is out of range, you get an ERROR message. Parameters entered for S-registers (also represented as the variable "n" in the Command Summary) must also be between 0 and 255. Parameters that are out of range do not cause an ERROR message. Communication software loads default values (contained in the initialization string) at initialization. An escape code sequence (usually +++) returns the modem to command mode from data mode. A time delay must occur between the last character transmitted and the first character of the escape code. This delay (called guard time) can be changed by writing a value to register S12 (default is 1 second). The escape code character must occur three times in succession for an escape to be recognized. Type commands in either upper or lower case, not both. Upper case is recommended. Command set Command "n" value Function $ Displays a basic command list; online help A Manual Answer: goes off hook in answer mode. Pressing any key aborts the operations. A/ Re-executes the last issued command. Used mainly to redial. This does not require the AT prefix or a Carriage Return. A> Continuously re-executes the last command that was executed. Command does not require that you press the Enter key. Any key Aborts off-hook dial/answer operation and hangs up AT Required command prefix, except with A/ and +++. Use alone to test for OK result code. Bn U.S./ITU-T answer sequence B0 IITU-T V.25 answer sequence B1 U.S. answer tone Dn Dials the specified phone number. Includes the following: P Pulse (rotary) dial T Tone dial , (comma) Two-second pause; linked to S-8 register ; (semicolon) Return to Command mode after dialing ! (exclamation point) Flashes the switch hook / Delays for 125 msec. before proceeding with dial string W Wait for second dial tone (X3 or higher); linked to S6 register @ Dials, waits for quiet answer, and continues (X3 or higher) R Originates call using answer (reverse) frequencies # Extended touch tone pad tones * Extended touch tone pad tones DL Dials the last-dialed number DSn Dials the phone number string stored in NVRAM at position n (n = 0-3). Phone numbers are stored with the &Zn=s command. D$ Displays a list of Dial commands En Sets local echo E0 Echo OFF E1 Modem displays keyboard commands Fn Sets online local echo of transmitted data ON/OFF F0 Local echo ON. Modem sends a copy of data it sends to the remote system to your screen. F1 Local echo OFF. Receiving system may send a remote echo of data it receives. Hn Controls ON/OFF hook H0 Hangs up (goes on hook) H1 Goes off hook In Displays the following information I0 Four-digit product code I1 Results of ROM checksum I2 Results of RAM checksum I3 Product type I4 Current modem settings I5 Nonvolatile memory (NVRAM) settings I6 Link diagnostics I7 Product configuration I10 VxD configuration I11 DSVD Link information I12 Link diagnostics Ln Controls speaker volume (internals only) L0 Low L1 Low L2 Medium L3 High Mn Operates speaker M0 Speaker always OFF M2 Speaker always ON M3 Speaker ON after dial, until CONNECT On Returns online O0 Returns online O1 Returns online and retrains P Sets pulse dial (for phone lines that don’t support touch-tone dialing) Qn Displays/suppresses result codes Q0 Displays result codes Q1 Quiet mode; no result codes Q2 Displays result codes only in Originate mode Sr.b=n Sets bit .b of register r to n (0/OFF or 1/ON) Sr=n Sets register r to n Sn? Displays contents of S-Register n S$ Displays a list of the S-Registers T Sets tone dial Vn Displays verbal/numeric result codes V0 Numeric codes V1 Verbal codes Xn Sets result code displayed and some dialing options. Default is X4. See "Xn Settings."   Xn settings Result Codes X0 X1 X2 X3 X4 0/OK x x x x x 1/CONNECT x x x x x 2/RING x x x x x 3/NO CARRIER x x x x x 4/ERROR x x x x x 5/CONNECT 1200 x x x x 6/NO DIAL TONE x x 7/BUSY x x 8/NO ANSWER* x x 10/CONNECT 2400 x x x x 13/CONNECT 9600 x x x x 18/CONNECT 4800 x x x x 20/CONNECT 7200 x x x x 21/CONNECT 12000 x x x x 25/CONNECT 14400 x x x x 43/CONNECT 16800 x x x x 85/CONNECT 19200 x x x x 91/CONNECT 21600 x x x x 99/CONNECT 24000 x x x x 103/CONNECT 26400 x x x x 107/CONNECT 28800 x x x x 151/CONNECT 31200 x x x x 155/CONNECT 33600 x x x x 170/RING A x x x x 171/RING B x x x x 172/RING C x x x x 173/RING D x x x x 180/CONNECT 33333 x x x x 184/CONNECT 37333 x x x x 188/CONNECT 41333 x x x x 192/CONNECT 42666 x x x x 196/CONNECT 44000 x x x x 200/CONNECT 45333 x x x x 204/CONNECT 46666 x x x x 208/CONNECT 48000 x x x x 212/CONNECT 49333 x x x x 216/CONNECT 50666 x x x x 220/CONNECT 52000 x x x x 224/CONNECT 53333 x x x x 228/CONNECT 54666 x x x x 232/CONNECT 56000 x x x x 236/CONNECT 57333 x x x x Functions Adaptive Dialing x x x x Wait for 2nd Dial Tone (W) x x Wait for Answer (@) x x Fast Dial x x Command "n" value Function Yn Selects power-on/reset default configuration Y0 Default is profile 0 setting in NVRAM Y1 Default is profile 1 setting in NVRAM Y2 Generic Template (&F0) Y3 Hardware Flow Control (&F1) Y4 Software Flow Control (&F2) Zn Resets modem Z0 Resets modem to NVRAM profile selected by Y command Z1 Resets modem to NVRAM profile 0 Z2 Resets modem to NVRAM profile 1 Z3 Resets modem to factory default profile 0 (&F0) Z4 Resets modem to factory default profile 1 (&F1) Z5 Resets modem to factory default profile 2 (&F2) &$ Displays a list of ampersand (&) commands &An Enable or suppress the display of an additional result code subsets. If the modem is set to X0 and the connection rate is from 1200bps to 33.6Kbps, result code 14 is displayed. Other result codes indicate the connection and require a setting of X1 or higher. &A0 Do not display ARQ result codes. This setting pertains only to the display of codes and not to ARQ function. &A1 Display ARQ result codes &A2 Display modulation indicators (V.32, VFC or V.34). If your software cannot handle the added modulation, select &A1 or &A0. &A3 Default. Display error control (LAPM, MNP, SYNC or NONE) and data compression type (V.42BIS/MNP5). In the following example, the devices negotiated error control for the call (ARQ), used V.34 modulation, are using the LAPM error control protocol, and are using V.42bis compression: CONNECT 28800/ARQ/V34/LAPM/V42BIS. &Bn This command for controlling the DTE rate is not used by the TelePath fax/modem. The modem's advanced capabilities allow it to follow your COM port's rate setting if it changes, even while online. &Cn Controls Carrier Detect (CD) signal &C0 CD override &C1 Normal CD operations &Dn Controls Data Terminal Ready (DTR) operations &D0 DTR override &D1 DTR toggle causes online Command mode &D2 Normal DTR operations &Fn Loads a read-only (non-programmable) factory configuration &F0 Generic template &F1 Hardware flow control template &F2 Software flow control template &Gn Sets Guard Tone &G0 No guard tone, U.S. and Canada &G1 550Hz guard tone, some European countries, requires B0 setting &G2 1800Hz guard tone, U.K., requires B0 setting &Hn Sets Transmit Data (TD) flow control &H0 Flow control disabled &H1 Hardware flow control, Clear to Send (CTS) &H2 Software flow control, XON/XOFF &H3 Hardware and software flow control &In Sets Receive Data (RD) software flow control (see also &Rn) &I0 Software flow control disabled &I1 XON/XOFF signals to your modem and remote system &I2 XON/XOFF signals to your modem only &Kn Enables/disables data compression &K0 Data compression disabled &K1 Auto enable/disable &K2 Data compression enabled &K3 MNP5 compression disabled &Mn Sets Error Control (ARQ) 1200bps and higher &M0 Normal mode, error control disabled &M1 Reserved &M2 Reserved &M3 Reserved &M4 Normal/ARQ &M5 ARQ mode &Nn Sets connect speed. If connection cannot be established at this speed, the modem will hang up. &N0 Variable rate &N1 300 bps &N2 1200 bps &N3 2400 bps &N4 4800 bps &N5 7200 bps &N6 9600 bps &N7 12,000 bps &N8 14,400 bps &N9 16,800 bps &N10 19,200 bps &N11 21,600 bps &N12 24,000 bps &N13 26,400 bps &N14 28,800 bps &N15 31,200 bps &N16 33,600 bps &N17 33,333 bps &N18 37,333 bps &N19 41,333 bps &N20 42,666 bps &N21 44,000 bps &N22 45,333 bps &N23 46,666 bps &N24 48,000 bps &N25 49,333 bps &N26 50,666 bps &N27 52,000 bps &N28 53,333 bps &N29 56,000 bps &N30 57,333 bps &Pn Sets pulse (rotary) dial make/break ratio &P0 U.S./Canada ratio, 39%/61% &P1 U.K ratio, 33%/67% &Rn Sets Receive Data (RD) hardware flow control, Request to Send (RTS) (see also In) &R0 Reserved &R1 Modem ignore RTS &R2 Received Data to computer only on RTS &Sn Controls Data Set Ready (DSR) operations &S0 DSR override; always ON &S1 Modem controls DSR &Tn Begins test modes &T0 Ends testing &T1 Initiates Analog Loopback &T2 Reserved &T3 Initiates Local Digital Loopback &T4 Enables Remote Digital Loopback &T5 Prohibits Remote Digital Loopback &T6 Initiates Remote Digital Loopback &T7 Initiates Remote Digital with self-test and error detector &T8 Initiates Analog Loopback with self-test and error detector &Un Sets floor connect speed when &Un is set greater than 0. &Nn is the ceiling connect speed. See &Nn. &U0 Disabled &U1 300 bps &U2 1200 bps &U3 2400 bps &U4 4800 bps &U5 7200 bps &U6 9600 bps &U7 12,000 bps &U8 14,400 bps &U9 16,800 bps &U10 19,200 bps &U11 21,600 bps &U12 24,000 bps &U13 26,400 bps &U14 28,800 bps &N15 31,200 bps &N16 33,600 bps &N17 33,333 bps &N18 37,333 bps &N19 41,333 bps &N20 42,666 bps &N21 44,000 bps &N22 45,333 bps &N23 46,666 bps &N24 48,000 bps &N25 49,333 bps &N26 50,666 bps &N27 52,000 bps &N28 53,333 bps &N29 54,600 bps &N30 56,000 bps &N31 57,333 bps &Wn Writes current configuration to NVRAM templates &W0 Modifies the NVRAM 0 template (Y0) &W1 Modifies the NVRAM 1 template (Y1) &Yn Sets break handling &Y0 Destructive, but doesn’t send break &Y1 Destructive, expedited &Y2 Nondestructive, expedited &Y3 Reserved &Zn=s Writes phone number string s to NVRAM at position n (n = 0-3) &Zn=L Writes last executed dial string to NVRAM at position n (n = 0-3) &Zn? Displays the phone number stored at position n (n = 0-3) <Ctrl>C Cancels the display of the help strings. <Ctrl>K Cancels the display of the help screens <Ctrl>S Stops/restarts help screens +++ Escapes to online-command mode   Voice commands Command "n" value Function #CLSn Selects Data, Fax, or Voice Mode #CLS? Displays current setting #CLS=0 Data Mode #CLS=1 Class 1 Fax #CLS=2 Class 2.0 Fax #CLS=8 Voice Mode. In this mode, the following commands can be requested: #VRX Receives voice file from line, microphone, or handset. #VTX Transmits voice file to line, speaker, or handset. #VLS=n Voice Line Select #VLS? Displays current setting #VLS=0 Telephone Line #VLS=1 Handset #VLS=2 Speaker #VLS=3 Microphone #VLS=4 Telephone Line/Handset #CID=n Caller ID #CID? Displays current setting #CID=0 Disables Caller ID reporting #CID=1 Enables formatted Caller ID reporting #CID=2 Enables unformatted Caller ID   DSVD Commands -SAD=n (1,2,3,4) Max queueing delay of audio samples -SAT=n (0,1) Input source 0=Handset 1=Spkr-Mic -SHG=n (0,1,2) Handset mic gain 0=low 2=high -SHV=n (0,1,2,3) Handset volume 0=low 3=high -SMG=n (0,1,2) Mic jack gain 0=low 2=high -SMUTE=n (0,1) Mute internal speaker 0=Spkr on 1=Spkr off -SMUX=n (0,1) Internal speaker audio source 0=data 1=audio -SPH? (0,1) Query Auxiliary Phone Hook Status -SSB=n (1,2) Audio blocking factor (#frames per V.42 packet) -SSE=n (0,1) Enable DSVD mode 0=disabled 1=enabled -SSN=n (0,1) Enable audio sequence numbers 0=disabled 1=enabled -SSV=n (0,1,2,3) Speaker jack volume 0=low 3=high   To set up a DSVD telegaming session with a friend, you must perform the following steps after choosing a game that supports multiplayer sessions.   To set up DSVD telegaming: Locate the Modem Setup area of the software (game) in use. Edit the Modem's initialization string settings and enter the initialization string you have chosen. A good example of a DSVD initialization string to be used during gaming is AT&F1&-SAT=1-SSE=1. This initialization string sets the modem to factory defaults and enables the DSVD microphone and speakers attached to your computer. This allows you to play a multiplayer game and communicate with your opponent via speakerphone simultaneously. After you have edited the modem initialization string to read AT&F1-SAT=1-SSE=1 (or something similar), initiate a multiplayer game via modem. Enter your opponent's telephone number in the appropriate field. When both parties have completed the steps above, you are able to talk to each other while playing the game. Note: As games get more advanced, they harness more of the computer's power to make your gaming experience as pleasureable as possible. Many of these games have 3-D video, digital sound, and special effects that require intensive attention from the CPU. Adding DSVD to the CPU's task list may result in some degredation of system performance. To function correctly, speakerphone also demands some of the CPU's power. Combining speakerphone, DSVD, and high-performance games may result in gameplay that is slower than normal. If it becomes a problem, try using a handset to communicate with your opponent instead of the speakerphone. Using the handset requires less attention from the CPU than the speakerphone does and increases the amount of resources available for the game. The amount of performance degredation that is experienced depends on a number of things: system configuration, game complexity, and modem connection speed. Experimenting with these settings for DSVD and video and audio performance may help overall system performance.   S-Registers To set an S-Register, type the AT prefix, then the S-Register number (0-255, unless otherwise indicated), then =, and then the numeric value. For example, to set the S-Register S3 to a value of 25, you would type: ATS3=25 (This is not a recommended setting for S3).   < TD WIDTH=270 VALIGN=top > Reset when DTR drops Register Default Function *S0 1 Sets the number of rings on which to answer in Auto AnswerMode. When set to 0, Auto Answer is disabled. S1 0 Counts and stores the number of rings from an incoming call (read only) *S2 43 Stores the ASCII decimal code for the escape code character. Default character is +. *S3 13 Stores the ASCII code for the Carriage Return character *S4 10 Stores the ASCII decimal code for the Line Feed character *S5 8 Stores the ASCII decimal code for the Backspace character *S6 2 Sets the number of seconds the modem waits for dial tone before dialing *S7 60 Sets the number of seconds the modem waits for a carrier or answers before returning on-hook and sending a No Carrier result code *S8 2 Sets the duration, in seconds, for the pause (,) option in the Dial command *S9 6 Sets the required duration, in tenths of a second, of the remote modem’s carrier signal before recognition by your modem *S10 7 Sets the duration, in tenths of a second, that the modem waits after loss of carrier before hanging up. This guard time allows the modem to distinguish between a line hit, or other disturbances that momentarily break the connection, from a true disconnect (hang up) by the remote modem.While we don’t recommend connecting the modem to a line with call waiting, if you have it, you may wish to adjust this setting upward to prevent the modem from misinterpreting the second call signal as a disconnect by the remote modem. A better alternative is to ask your phone company how to temporarily disable call waiting (usually *70W). *S11 70 Sets the duration and spacing, in milliseconds for tone dialing *S12 50 Sets the duration, in fiftieths of a second, of the guard time for the escape code sequence (+++) *S13 0 Bit-mapped register. Select the bit(s) you want on and set S13 to the total of the values in the Value column. For example, ATS13 = 17 enables bit 0 (value is 1) and bit 4 (value is 16). Bit / Value Result 0 / 1 1/2 Reset non-MNP transmit buffer from 1.5K to 128 bytes 2 / 4 Set backspace key to delete 3 /8 On DTR signal, auto dial the number stored in NVRAM at position 0. 4 / 16 At power on/reset, Auto Dial the number stored in NVRAM at position 0. 5 /32 Reserved. 6 / 64 Reserved. 7 / 128 Disconnect on escape code S14 0 Reserved S15 0 Bit-mapped register setup. To register, see instructions for S13 Bit / Value Result 0 / 1 Disable ARQ/MNP for V.22 1 / 2 Disable ARQ/MNP for V.22bis 2 / 4 Disable ARQ/MNP for V.32/V.32bis 3 / 8 Disable MNP handshake 4 /16 Disable MNP level 4 5 / 32 Disable MNP level 3 6 / 64 Special MNP incompatibility 7 / 128 Disable V.42 detection phase S16 0 Bit-mapped register setup. To set the register, see instructions for S13. Bit / Value Result 0 / 1 Reserved. 2 / 4 Touch tone dialing test 2-7 / 4-128 Reserved. S17 0 Reserved S18 0 Test timer for &Tn loopback testing. Sets the time in seconds of testing before the modem automatically times out and terminates the test. When set to 0, the timer is disabled. Valid range is 1-255. *S19 0 Sets the duration, in minutes, for the inactivity timer. The timer activates when there is no data activity on the phone line; at time-out the modem hangs up. S19 = 0 disables the timer. S20 0 Reserved S21 10 Sets the length, in 10-millisecond units, of breaks sent from the modem to the computer; applies to MNP or V.42 mode only. S22 17 Stores the ASCII decimal code for the XON character. S23 19 Stores the ASCII decimal code for the XOFF character. S24 0 Reserved S25 20 Sets the duration, in hundredths of a second, that DTR must be dropped so that the modem doesnít interpret a random glitch as a DTR loss. (Most users will want to use the default; this register is useful for setting compatibility with older systems running under older operating software.) S26 0 Reserved S27 0 Bit-mapped register setup. To set the register, see the instructions for S13. Bit / Value Result 0 / 1 Enables ITU-T V.21 modulation at 300 bps for overseas calls; in V.21 mode, the modem answers both overseas and domestic (U.S. and Canada) calls, but only originates V.21 calls (Default Bell 103) 1 / 2 Enables unencoded (non-trellis coded) modulation in V.32bis mode; rarely used part of the ITU-T V.32bis recommendation 2 / 4 Disables V.32 modulation 3 / 8 Disables 2100Hz answer tone to allow two V.42 modems to connect more quickly 4 /16 Enables V.23 fallback mode 5 / 32 Disables V.32bis mode 6 / 64 Reserved 7 / 128 Software compatibility mode. This setting disables the codes above 9600 and displays the 9600 code instead. The actual rate of the call can be viewed on the ATI6 screen. Used for unusual software incompatibilities. Some software may not accept 7200, 12000 and 14400 bps result codes. S28 0 Eliminates the V.32 answer tones for a faster connection 8 Default time, in tenths of a second 255 Disables all connections except V.32 at 9600 bps S29 20 Sets the duration, in tenths of a second, of the V.21/V.23 answer mode fallback timer S30 0 Reserved S31 128 Reserved S32 2 Bit mapped register setup for 33.6 speed modems only. To set the register, see the instructions for S13. Bit / Value Result 0 / 1 V.8 Call Indicate enabled 1 / 2 Enables V.8 mode 2 / 4 Reserved 3 / 8 Disable V.34 modulation 4 /16 Disable 33.6 kbps support 5 / 32 Disable X2 support 6 / 64 Reserved 7 / 128 Reserved S33 0 Bit mapped register setup for the 33.6 speed modems only. To set the register, see the instructions for S13. Bit / Value Result 0 / 1 Disable 2400 Symbol rate 1 / 2 Disable 2743 Symbol rate 2 / 4 Disable 2800 Symbol rate 3 / 8 Disable 3000 Symbol rate 4 /16 Disable 3200 Symbol rate 5 / 32 Disable 3429 Symbol rate 6 / 64 Reserved 7 / 128 Disable Shaping S34 0 Bit mapped register setup. To set registers, see instructions for S13 Bit / Value Result 0 / 1 Disable 8S-2D trellis encoding 1 / 2 Disable 16S-4D trellis encoding 2 / 4 Disable 32S-2D trellis encoding 3 / 8 Disable 64S-4D trellis encoding 4 /16 Disable non-linear coding 5 / 32 Disable TX level deviation 6 / 64 Disable Pre-emphasis 7 / 128 Disable Pre-coding S35-S-37 Reserved S38 0 Sets an optional delay, in seconds, before a forced hang-up and clearing of the Transmit buffer when DTR drops during an ARQ call. This allows time for a remote modem to acknowledge receipt of all transmitted data before it is disconnected. If you keep the default, the modem immediately hangs up when DTR drops. This option only applies to connections terminated by dropping DTR. If the modem receives the ATH command, it ignores S38 and immediately hangs up. S41 0 Bitmapped Bit 0 / Value Result 0 / 0 Distinctive Ringing Disabled 1 / 1 Dinstinctive Ringing Enabled Bits 2,1 / Value Result 00 / 0 Full-Duplex Speakerphone Mode 01 / 2 Half-Duplex Speakerphone Mode Bits 7 to 3 Reserved   Notices   All rights reserved This publication is protected by copyright and all rights are reserved. No part of it may be reproduced or transmitted by any means or in any form, without prior consent in writing from Gateway 2000. The information in this manual has been carefully checked and is believed to be accurate. However, Gateway 2000 assumes no responsibility for any inaccuracies that may be contained in this manual. In no event will Gateway 2000 be liable for direct, indirect, special, exemplary, incidental, or consequential damages resulting from any defect or omission in this manual, even if advised of the possibility of such damages. In the interest of continued product development, Gateway 2000 reserves the right to make improvements in this manual and the products it describes at any time, without notice or obligation.   Trademark acknowledgments AnyKey, cow spot motif, CrystalScan, Destination, Field Mouse, Gateway 2000, GW2K, HandBook, TelePath, Vivitron, stylized "G" design, and motto "You’ve got a friend in the business" are registered trademarks and EZ Pad, Family PC, and Gateway Solo are trademarks of Gateway 2000, Inc. Intel, Intel Inside logo, and Pentium are registered trademarks and MMX is a trademark of Intel Corporation. Microsoft, MS, MS-DOS, and Windows are trademarks or registered trademarks of Microsoft Corporation. All other product names mentioned herein are used for identification purposes only, and may be the trademarks or registered trademarks of their respective companies. Copyright © 1997 Gateway 2000, Inc. 610 Gateway Drive, N. Sioux City, SD 57049 USA   Regulatory Compliance Statements   FCC Part 68 This modem complies with the FCC, Part 68 Rules and Regulations. The telephone company may request the following information: The ringer equivalence number* The FCC Registration number* *This information is printed on the FCC label provided on the Gateway 2000 TelePath modem for Windows with x2. Note: The Ringer Equivalence Number (REN) is used to determine the quantity of devices which may be connected to the telephone line. Excessive REN’s on the telephone line may result in the devices not ringing in response to an incoming call. In most, but not all areas, the sum of the REN’s should not exceed five (5.0). To be certain of the number of devices that may be connected to the line, as determined by the total REN’s, contact the telephone company to determine the maximum REN for your area. If the modem malfunctions, disconnect it from the telephone line until the proble is corrected. If you do not disconnect the modem and correct the problem, the telephone company may temporarily disconnect your service The telephone company must notify you if it makes changes to the telephone line that would affect the modem in any way. If advance notice is not practical, the phone company will contact you as soon as possible. Also, you will be advised of your rights to file a complaint with the FCC if you believe it is necessary. Do not connect this modem to a coin telephone line or party line. This modem uses the following USOC jacks: US: RJ-IIC CANADA: CAIIA If you have any problems with the TelePath modem for Windows with x2, contact Gateway 2000 Customer Support.   FCC Part 15, Subpart E American Users: This device has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio or television reception. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio and television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio/TV technician for help. Warning! Change of modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment. Canadian Users: This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of Industry Canada. Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de Classe B prescrites dans le règlement sur le brouillage radioélectrique édicté par Industrie Canada. Caution! Disconnect power before servicing. Attention! Couper le courant avant l’entretien.