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From: lars@spectrum.cmc.com (Lars Poulsen)
Newsgroups: comp.dcom.telecom
Subject: Re: Touch-Tone Specifications
Message-ID: <15967@accuvax.nwu.edu>
Date: 10 Jan 91 20:37:41 GMT
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X-Telecom-Digest: Volume 11, Issue 24, Message 5 of 9


In article <15893@accuvax.nwu.edu> hpa@casbah.acns.nwu.edu (Peter
Anvin) writes:

>[Telephones built for US] will work [in Sweden]. ...
>However, a few things to keep in mind:

>5. Get a phone that supports all four RJ-11 wires (including black/yellow).
>   Swedish Televerket warns that a "pirate" (non-compliant) telephone may
>   not hang up properly, running up your bill long after you hung up.

What do they put ON the second pair? A reference ground for ground-start 
lines? A signalling hookswitch closure?

Most *consumer* units that have the second pair connected these days
would expect to find a second line there!! Surely that is not what
Televerket expects?


Lars Poulsen, SMTS Software Engineer
CMC Rockwell  lars@CMC.COM