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- Q&A: Courier HST Dual Standard and Courier V.32
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- The Courier HST Dual Standard and Courier V.32 modems join USR's
- Courier HST to give modem users the most comprehensive, compatible and
- cost-effective family of high-speed modems anywhere.
- We believe our product line now provides the right answers to
- virtually every high-speed modem application. But we also understand
- that the introduction of our new high-speed modems may raise a few
- questions, such as the following:
-
- Question: What's the big story?
-
- Answer: We think the big story is compatibility.
-
- In providing the Courier HST Dual Standard modem, U.S. Robotics is
- the first and only manufacturer to offer an industry-standard CCITT
- V.32 modem that also communicates at 9600 bps with a non-V.32 high-
- speed modem the popular Courier HST, with an installed base
- approaching 45,000 units.
- All other suppliers of non-V.32 high-speed modems have presented
- their users with a compatibility problem. Their V.32 modems can't
- connect at 9600 bps with their non-V.32 modems!
-
- Question: Why is it important to offer high-speed compatibilty
- between non-V.32 and V.32 modems?
-
- Answer: Think about setting up a wide area network (WAN) of high-
- speed modems, with hundreds or even thousands of remote
- desktop computer users communicating with each other and with a data
- center at company headquarters.
- The data center may need only one modem for every ten, twenty or
- even fifty desktop modems, depending on usage patterns. Saving money
- at the desktop becomes a major objective, because that's where most
- units reside.
- Until now, the wide area networker has been forced by high-speed
- modem vendors to choose between two unsatisfactory solutions.
- The first choice is to equip the data center and the desktops with
- expenisve V.32 modems. This solves compatibility problems, but
- carries big penalties in cost and productivity for desktop
- applications that are better served by less expensive, yet higher
- performing, non-V.32 modems.
-
- The second choice is to use non-V.32 modems in the data center and
- at the desktop. This saves money, but limits the utility of the data
- center modems. And it prevents high-speed communication with any V.32
- or other proprietary modem in the rest of
- the world.
-
- Question: Does the Dual Standard modem make sense for both desktops
- and data centers?
-
- Answer: It depends on how people are using their modems.
-
- In the example above, our hypothetical WAN could use Courier HST
- Dual Standard modems at the data center and Courier HST modems on the
- desktops. In tests by Data Communications magazinze, the Courier HST
- proved to be the best high-speed modem for PC-style applications like
- file transfers, electronic mail and interactive database access. And
- it's priced $600 below the Courier HST Dual Standard.
- At the data center, the Dual Standard's V.32 capability answers all
- requirements for true full-duplex and synch/asynch transmission in
- applications like LAN bridging, micro-to-mainframe, host-to-host, two-
- wire leased line and leased line one-call dial backup, or for
- international data communications.
- The obvious key to this WAN configuration is the Courier HST Dual
- Standard modem's compatibility with both V.32 and Courier HST modems.
- It lets desktops and data centers communicate at 9600 bps without
- spending an extra $600 per desktop modem. And it lets the data center
- connect at 9600 bps with both the desktops and with every competitive
- V.32 modem in the world.
- Depending on specific needs, some of the desktops may be better
- equipped with Dual Standard or V.32 modems. In either case, though,
- they'll still connect at high speed with the data center's Dual
- Standard modems.
-
- Question: If it's so important to provide both V.32 and HST
- compatibility, why does U.S. Robotics also offer a plain
- V.32 modem?
-
- Answer: We consider V.32 to be an application-specific, niche market.
- Some customers will use their modems in applications
- that require neither the Courier HST's asymmetric modulation nor
- compatibility with an HST installed base. These customers can
- purchase our Courier V.32 for $100 less than the Dual Standard and
- still receive the benefits of 2400/1200/300-bps compatibilty and MNP
- Class 5 data compression and error control.
- -
- Question: Speaking of MNP, why hasn't U.S. Robotics included MNP
- Class 7 in the new modems?
- Answer: As you probably know, CCITT recently issued its V.42
- recommendation for error control in dial-up modems. The V.42
- spec includes both MNP (through Class 4) and a new protocol known as
- LAP-M.
- The committee that drafted V.42 will meet during the winter to
- consider adding a data-compression protocol to the V.42 standard. As
- a participant in that committee, U.S. Robotics will help craft the
- new data-compression standard. The new proposal (made by British
- Telecom) will differ from MNP Class 7. If CCITT expands V.42 to
- include a data-compression protocol, MNP Class 7 modems will be
- incompatible.
- When the V.42 question is settled, U.S. Robotics will incorporate
- the new, standard data-compression protocol into our modem line.
-
- Question: Will upgrades be available for your HST modems?
-
- Answer: It's our policy, whenever possible, to offer the newest
- technology to our current and past customers. Because of the
- compatibility between the HST and the Dual Standard, we don't believe
- that there is a need to upgrade. However, we will offer to upgrade
- HSTs to Dual Standard modems for $799.
-
- Question: What's the status of U.S. Robotics' proposal to create
- a new CCITT modem standard based on the Courier HST?
-
- Answer: CCITT will study the proposed V.34 asymmetric modem
- recommendation during the winter. If adopted, the new V.34
- standard would describe a modulation technique very similar to
- that used in the Courier HST. The technique would be useful for Group
- IV facsimile modems in addition to PC-style modems like the HST. The
- outlook for V.34 is favorable, according to CCITT sources, but we can
- only wait for the standards-setting process to run its course before
- the issue is settled.
-
- Question: Do you expect many people to take advantage of your high-
- speed modem trade-in offer? What will happen to those
- modems?
- Answer: We've made our trade-in offer on the good-faith premise
- of providing everyone with V.32 compatibility. It remains to
- be seen how many people will take advantage of it. As for the trade-
- ins, we'll have some fun disposing of them in a manner that will pose
- no threat to the environment.
-
- 11/1/88 ####