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Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!seismo!rochester!ciaraldi
From: ciaraldi@rochester.UUCP
Newsgroups: comp.dcom.modems
Subject: Re: V.22 modem
Message-ID: <25829@rochester.ARPA>
Date: Wed, 11-Mar-87 22:33:38 EST
Article-I.D.: rocheste.25829
Posted: Wed Mar 11 22:33:38 1987
Date-Received: Fri, 13-Mar-87 00:58:45 EST
References: <704@dvlmarv.UUCP>
Reply-To: ciaraldi@rochester.UUCP (Mike Ciaraldi)
Organization: U of Rochester, CS Dept, Rochester, NY
Lines: 26
Keywords: HELP!!

In article <704@dvlmarv.UUCP> eddie@dvlmarv.UUCP writes:
>
>Over in Germany, they are using a V.22 modem which suppose to be 
>compatible with a Bell 212 modem. We have tried three different
>modems ( Racal-Vadic VA211, true Bell 212, and Hayes Smartmodem
>2400). They all share the same problem.  Any suggestion on what we
>can try?????


It is my understanding that Bell 212 and V.22 are NOT compatible
1200 bps modem standards.  
At 2400 b.p.s. Americans and Europeans use the same standard,
V.22 bis ("bis" = French for "secondary"), but not
at 1200.

However, the Hayes 2400 I think has a switch   for
v.22 or Bell 212 at 1200.

Also, if you don't have to have real-time access, using
a packet-switching network or electronic-mail system
probably has a much higher chance of success over 
intercontinental distances.

Mike Ciaraldi
seismo!rochester!ciaraldi
(someone who has trouble making 1200 bps workk across town)