[H-GEN] Multilinked modem options

[Andrew Gibson]

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>Hi all,
>
>Can anyone enlighten me:
>
>1) Is it possible to get two v90 modems, hanging off a pair of linux
>routers, one dialed in to the other, to work at 56k in either (or
>preferably both) direction(s)? At least one end may be connected to a
>digital line (PSTN).

You must have one end with digital equipment to support a 56K connections. 
Two standard analogue modems will only connect at 33.6k over PSTN. A number 
of internal Hybrid cards eg Digi/Multitech are available that support 2/4/8 
ISDN/V.90 Dial-up. With these hybrid units you can establish V.90 
connections. The Hybrid card connects via an ISDN (Digital) line and are 
relatively expensive, other end can be digital or analogue. We have used 
the Multitech (MultimodemISI) product and it has Linux drivers.

Another alternative is to use DOV with ISDN, this requires both sides to 
have ISDN and requires one site to be residential for the billing. Also 
cost wise the residential side would have to make all the calls. 
(http://www.traverse.com.au/Australia/html/dov.html) DOV allows 64K/128K 
connections at the same costs as 56k dial-up. Again Linux driver ISDN DOV 
support is available for the Traverse product.

Hope this helps.

Regards


Andrew Gibson
Sales Support
----------------------------------------------------------------------
HiTec Pty Ltd
19 Campbell Street
Bowen Hills Qld 4006      Voice: 07 3252 9998
Australia                    Fax: 07 3257 3998
Web: http://www.hitec.com.au
----------------------------------------------------------------------


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