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From: alawlor@dit.ie (Aengus Lawlor)
Newsgroups: comp.sys.ibm.pc.programmer
Subject: Re: European Modem Standards --- Hayes?
Message-ID: <7417.260e210a@dit.ie>
Date: 26 Mar 90 14:02:50 GMT
References: <4959d33b.20b6d@apollo.HP.COM>
Organization: Dublin Institute of Technology
Lines: 28

In article <4959d33b.20b6d@apollo.HP.COM>, yon@apollo.HP.COM (David Yon) writes:
> What I'd like to know is, has the Hayes "AT" command set dominated the
> European PC modem market like it has in the U.S.?  I ask this because I
> know that the phone systems over there are very different animals, so
> much that I don't beleive that a U.S. modem will work on their lines.
US telephone equipment uses a make/break ratio of 39/61 %. That ratio is 33/37
% in some parts of Europe. This effects pulse dialing.
A lot (most?) of modems available in Ireland and the UK support the AT command
set. I can't say what the situation in Italy might be. The fact that there was
no English language docs might indicate an Italian "standard". 
I have two different card modems that I bought in the US, and they work fine 
here, when the jumpers are set to CCITT mode. (ie V standards.) 1200 and 2400 
baud work fine, but 300 is out. (big deal)

> I'd like to think that I can just have her get Procomm or something,
> and It Will All Just Work(tm).  If it's not a Hayes compatible, then
> of course we're hosed.  I'd like to have some clue about this before
> I start her on a rat race, with me sending test floppies every two weeks
> until we finally figure out what's going on.  (ever try to be a system
> administrator from 4000 miles away??? yuck)
> 
> Anyone have any insight into this?  Any help appreciated.
> 
> David Yon
-- 
Aengus Lawlor    Dept of Computer Science.           Time flies like an arrow,
ALAWLOR@DIT.IE   Dublin Institute of Technology.     Fruit-flies like a banana
                 Kevin Street. Dublin 8. Ireland.