home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
The Arsenal Files 1
/
The Arsenal Files (Arsenal Computer).ISO
/
telecom
/
r611a.not
< prev
next >
Wrap
Text File
|
1994-01-26
|
10KB
|
234 lines
Firmware 6.11a Corrections 1-5-1994
------------------------------
1. Modem will fix line speed if the rate word from remote modem only
indicates one speed capability. If remote modems tells the ZyXEL,
it wants to maintain 1 speed only regardless of phone line conditions,
then the modem will not try to retrain or fall back.
2. Add delay before sending V42 XID frame after ADP detected. Maintain
compatibility with some modem's 1200 bps V42 handshaking.
3. With &M1, modem will send asynchronous connect message before it
switches to synchronous link.
4. The problem of AA LED not blinking when ringing signal detected is
fixed.
5. V.33 compatibility improved.
6. V.29 modulation for 4W leases line modified.
7. Fixed V.25bis in &D3 mode.
8. Fax calling tone (CNG) will be terminated only after valid HDLC frame
received.
9. Solved QuickLink II fax compatibility problem (fix DTE at 19200 on fax
mode by S39.4=1).
10. Parallel fax receiving problem (S38.4=1) fixed. The modem will
disconnect when an incoming fax is detected and allow the fax machine
that is connected to the ZyXEL to receive the fax.
11. AT+fclass=8 will no longer reset voice parameters.
Firmware 6.11a Feature Enhancements 1-5-1994
---------------------------------------
1. Implemented the data calling tone detection in voice mode, <DLE>e.
2. Implemented the dial tone detection in voice mode, <DLE>d.
3. Implemented an inactivity timer in voice play mode, use AT+VIT to set
the timer between 0 and 255, the unit is in 1.0 second.
4. Add VCON sensitivity configuration, use AT+VVT to set the value
between 0-255. A higher value decreases the sensitive. The default
value is 16.
5. Add voice recording re-sync timer, use AT+VSY to set the timer
between 0-255, the unit is in 50 ms.
6. In voice play mode, you can use the <DLE>p to pause or <DLE>r to
resume the voice play from data buffer.
7. In voice play mode, the <DLE><CAN> command clears the transmit buffer
of voice data in modem.
8. In voice play mode, the <DLE><DC4> command clears the transmit buffer
of voice data then forces modem to return to command mode.
9. S48.2=1 enables data CNG calling tone transmission.
10. Set bit 1 of s48 to enable "Data Only" mode
a. auto detect ZyX/V32bis/V32/V22bis/V.23/Bell 103/V.21 when
answering
b. if handshaking of all speeds failed, modem continuously recycles
the handshaking procedure until the S7 timeout.
11. Added #E1 to display line condition status. You will have to drop
down into command modem while you are on-line with a +++. Then type
AT#E1. Your terminal software will display only the line starting
with "*"
CURRENT Signal to Recieve Retrain Retrain Fast Fast
SPEED Noise Ratio Level Granted Requested RG RT
* 16800 SN=XX.X RX=-XX.X RG=XX RT=XX FG=XX FT=XX
11. In voice play mode, the <DLE><FS> or <DLE><DC2>, resync symbol, resets
the ADPCM coder and still maintain continuity in the voice play mode.
note: * DLE = 0X10
* DC2 = 0X12
* DC4 = 0X14
* CAN = 0X18
* FS = 0X1C
13. New feature: Extended Distinctive Ringing
Using Extended Distinctive Ring with ZFAX
Extended Distinctive Ring (EDR) is a special feature designed for home single
telephone line home use to receive fax or data calls without interference with
regular voice calls. Most users when they install a fax/modem at home, would
not subscribe to one extra telephone line just for occasionally fax or data
calls; however, fax/data calls do come from time to time.
If the user lets the fax/data software application answers the call, voice
calls would be missed; on the other hand, if a person or answering machine
answers the call, fax or data call would be either missed or the person who
answer the call has to go run to the computer to get this call to connect to
the proper application. Either way is not desirable.
What EDR can do for users, once enabled with proper setting, are:
1. It can detect fax CNG tone without physically answering the call.
Once the CNG tone is detected, the modem will report "RING" or
"RING n" to the application software, thus the software can tell the
modem to answer the call.
2. It can detect several DTMF tones without physically answering the
call. The modem detects the DTMF tones, it will report "RING" or
"RING n" to the software application.
With these two functions, your ZyXEL can be installed with an answering
machine or telephone set at home. In most cases, you would set the modem to
not report regular rings so the software will not instruct the modem to answer
the phone when it rings. When a call comes in, the answering machine will
answer the phone and play a voice message. At this moment, the modem once
detecting the ring signal has gone will start to listen to the line for CNG
tone or DTMF tones.
If the remote caller is an unattended fax machine which sends out CNG tones
for a period of time, the modem will detect the CNG tone and report "RING" to
software immediately. The software application can issue commands to answer
the call and receive fax. If the remote caller is using a fax phone which
does not send out CNG tones and the caller is waiting for a fax answer tone in
order to press "START" buttom, the caller can then press a designate DTMF tone,
which will activate modem to report and consequently answer the fax call.
This is just one of the applications that EDR can be utilized. We have
designed many different ways to set the modem up not only to cover the basic
usage but also for different extended applications.
Setting Up EDR
The new EDR can be used at home where multiple phones are installed parallel
(normal home telephone set-up with at least 1 extension). Once this function
is enabled, the modem will go into EDR mode after the ring disappears, where
it will be able to detect CNG, *, 0, # and reports them as different types of
ring.
S-registers:
S51 bit 2-0
000 EDR disabled
001 EDR enabled, single "RING" or "RING n" will be reported
010 EDR enabled, "RING" or "RING n" will be reported twice
011 EDR enabled, "RING" or "RING n" will be reported 3 times
100 EDR enabled, "RING" or "RING n" will be reported 4 times
:
:
111 EDR enabled, "RING" or "RING n" will be reported 7 times
S51 bit 5-3
000 Disable CNG tone detection
001 Enable CNG tone detection, reports as "RING"
010 Enable CNG tone detection, reports as "RING 1"
011 Enable CNG tone detection, reports as "RING 2"
:
:
111 Enable CNG tone detection, reports as "RING 6"
S40 bit 6-3
0000 To disable DTMF tone detection for EDR
xxx1 To enable "*" detection, and reported as "RING"
xx1x To enable "0" detection, and reported as "RING 1"
or "RING" if only one type is enabled
x1xx To enable "#" detection, and reported as "RING 2"
or "RING" if only one type is enabled
1xx0 To enable "*" detection, and reported as "RING 3"
(xxx1 has priority).
You can enable more than one type by turning on more than one of the
3 bits.
EDR detection (either CNG or DTMF tone) will be disabled once it occurred.
However, the customer's program might not answer because the sofware is
waitng for a certain # of rings before it will answer. S51 bit 2-0 is used to
control the # of ring that modem will report once CNG tone or DTMF is detected.
The timing relationship between Caller ID (if enabled), EDR and the Ring
detector are as follows:
1'st 2'nd 3'rd
on off on off on
****--------****---------****------------------------------------
3s 3s 3s 3s s7 timeout
+------+----+-------+----+------+----+---------------------+----
CID/EDR RD EDR RD EDR RD EDR RD
CID: Caller ID task
RD : Ring Detector task
SA : EDR task
Please remember during EDR period, the auto baud function is disabled, issuing
a command at different baud might cause the modem not to be able to response
to any "AT" command. Any AT command (assuming the command is accepted) will
also disable EDR function right away.
Application Example
Let's go back to the previous example where an answering machine is installed
with a ZyXEL modem. Say we use ZFAX as our fax reception application, and we
don't want it to answer the call unless it is a fax call. The way to set it
up would be:
1. Set ZFAX to answer on 1 ring.
2. Set S51.0=1 to enable EDR and report "RING" once
3. Set S51.3=1 to enable CNG tone detection, and reports as "RING"
4. Set S40.4=1 to
a. enable Distinctive Ring type 2; and therefor modem will not report
normal ring, thus ZFAX will not answer call unless EDR reported
b. enable DTMF tone "0" detection, and reports as "RING" in case the
remote fax machine does not generate CNG tone. In your answering
machine message you can ask fax call to press "0" if he (she) wants
to send a fax
5. Save the settings in a profile and reset the modem from this profile:
AT&W0Z0 for example.