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From: Primary Access Corp <foxtail!jdunn@ucsd.edu>
Newsgroups: comp.dcom.telecom
Subject: Re: Are DID Trunks Incoming Only?
Message-ID: <8882@accuvax.nwu.edu>
Date: 12 Jun 90 01:09:42 GMT
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X-Telecom-Digest: Volume 10, Issue 428, Message 9 of 11


DID trunks are, in fact, for inward calls only, although that's
strictly a marketing decision on the part of the telephone company.
There is no "real" technical reason why DID trunks (which in fact are
four wire E&M wink start trunks or two wire loop/reverse battery
trunks) can't be used for two way traffic. The phone company uses them
for two way internal applications all the time. (Actually, they uses
trunks of this type, not strictly DID trunks).


Jim Dunn

[Moderator's Note: Welcome to the Digest. Perhaps you might tell us a
bit more about your organization.  PT]