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From: dave@westmark.westmark.com (Dave Levenson)
Newsgroups: comp.dcom.telecom
Subject: Re: Distinctive-Ring Based Call Distributor
Message-ID: <12540@accuvax.nwu.edu>
Date: 24 Sep 90 14:50:57 GMT
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X-Telecom-Digest: Volume 10, Issue 674, Message 8 of 11


In article <12503@accuvax.nwu.edu>, limhl@hpsgm2.sgp.hp.com (Hui Lin
Lim) writes:

> > (variously sold as RingMaster, SmartRing, RingMate around the country,
> > in which multiple numbers mapped to the same line generate different
> > ring patterns). 

> Could anyone elaborate on how this service is provided?  Does it
> require an ISDN switch etc?

No, it doesn't require anything more than a plain, ordinary analog
space-division switch such as the 1A-ESS, when it's offered here in
NJ.  It only requires that the telco equip its switch with a generic
that provides the service, and that they tariff it or whatever is
required by your state before a new service may be offered.

Nothing special is required at the customer end.  Just an ordinary
telephone set equipped with a ringer.  Different ring cadences are
used to identify which of several phone numbers was dialed, when they
all ring the same line.

Just make sure that your tel set ringer is powered directly from the
tel line, not by a key system, PBX, or other device which generates
its own cadence.  Also, watch out for answering machines that count
rings.  It may count the individual signaling elements of a
short-long-short ring cadence as three rings.


Dave Levenson			Internet: dave@westmark.com
Westmark, Inc.			UUCP: {uunet | rutgers | att}!westmark!dave
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[The Man in the Mooney]		Voice: 908 647 0900  Fax: 908 647 6857