Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!bloom-beacon!usc!polyslo!csun!srhqla!sagepub!dfm
From: dfm@sagepub.UUCP (David F. McCune)
Newsgroups: comp.dcom.modems
Subject: US modem in UK
Keywords: US UK modem
Message-ID: <1319@sagepub.UUCP>
Date: 30 Apr 89 22:38:14 GMT
Organization: Sage Publications, Inc., Newbury Park, CA
Lines: 32


I recently took a Zenith SUpersport 286 portable (purchased in the
US) to London.  I had an internal US Hayes-compatible modem.
I was able to dial my machine in the US with only moderate success.

First, I bought a British Telecom 431a male plug and wired it
(using just the red and white wires) to a female RJ11.  Then
I plugged the BT plug into the UK phone system and plugged the
computer into the RJ11 jack.  Using normal AT commands, I was
able to dial a US number.  But I noticed the following problems:

1. I had to use ATDP instead of ATDT.  Pulse dialing seemed
   to work, but tone dialing did not.

2. On occasion, the modem would freeze up just after dialing
   the first digit in the phone number.  The modem would not
   respond at all.  I had to power down before I could get the
   modem back.

Is there some trick to all this that makes UK -> US connections
easier?  Can one by a BT431a <-> RJ11 adapter?  (I tried in London,
to no avail.)  Is there some way to make a US modem recognize
UK dialtones and touchtones?

Thanks for any help!

David
-- 
                 David McCune, Sage Publications, Inc.
           2111 West Hillcrest Drive, Newbury Park, CA 91320
           dfm@sagepub.UUCP     uucp: ...srhqla!sagepub!dfm
             voice: (805) 499-0721    fax: (805) 499-0871