🚀 go-pugleaf

On Wed, 08 Dec 1999 08:51:01 +0000, Paul Black <paul.black@oxsemi.com>
wrote:

>I've been looking at getting another ISDN card/TA as I seem to have trouble
>with my Speedway card (not sure if it's card problems or driver problems
>or something else). I was looking at the Hayes Accura ISDN TA web page and
>have a couple of queries:
> - Would external TAs using AT commands just be treated as a modem (i.e. use
>   pppd) and require no special kernel support?

Yes this is usually the case. You should be able to plug-in an active
card, or use an external TA without any changes in the software, or
have addiitional drivers. They do look like modems, but TA's are not
modems, unless they have a built-in integrated modem to continue
connecting to the old analogue telecom world.

> - What about compression? Demon provide STAC and MS-STAC but the web page
>   mentions "V.42bis Data Compression over ISDN using V.120 & X.75", are
>   they different terms for a similar thing or does it mean STAC/MS-STAC is
>   not supported?
>

V.42 bis is the analogue world just as V.120 & X.75 are interim
bridges between the analogue world and ISDN. None of these are
necessary now and were only used in the early days of ISDN.

PPP sync is the most common connection protocol -the internet
standard- and now STAC is the digital compression de-facto standard.


Barry Schofield 

Linux PCI TA 128Kbps �25 are now available. Free
RedHat 6.1. Check our web site www.lioncom.net.