Hello Arthur,

On Mar 12 06:32 in a msg to Poe Lim, Arthur Marsh of 3:800/812 wrote:

 AM> Maybe Motorola could make better margins using their fabrication
 AM> plants for PowerPC chips, and get a good price on modem chips from
 AM> AT&T. 

Possible...

 AM> Further speculating, perhaps AT&T's chipsets for 33.6 kbps
 AM> operation were at a later stage of production than Motorola's.

More probable; there is prestige involved that goes beyond the first supposition.

 AM> lasts. Some of the 326X series have synchronous operation and
 AM> synchronous data compression which low end modems lack and niche

How does sync data compression work?

 AM> For the best possible V.34 operation between a site with ISDN and a
 AM> remote site without ISDN, the ISDN equipped site should have a 4
 AM> wire interface to its V.34 modem (either internally as Ascend
 AM> presumably does, or by having a 4 wire interface on the ISDN
 AM> terminal adapter).

Is there any reason for 4 wire? Does ISDN require 4 wire? I know there are
hybrids around such as USR's I-Modem that will do either v.34 or 64K ISDN
(their press release say they are not considering Bonding at the present,
although 128K PPP is coming). It apparently supports async ports from modem
to serial card, where it will then appear like a normal modem, or sync via
an adapter.

 AM> Four wire analogue operation may also be easier to provide than
 AM> ISDN for remote sites that do need high speed data operation beyond
 AM> 7 km from the nearest exchange/RIM/RCM/...

So I gathered, unless there is a booster.

Cheers,
Poe

--- timEd/2 1.10+