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- Path: sparky!uunet!sun-barr!ames!lll-winken!telecom-request
- From: chatel_m@annecy.enet.dec.com (Marc Chatel)
- Newsgroups: comp.dcom.telecom
- Subject: Re: *69 and Call Waiting
- Message-ID: <telecom12.627.3@eecs.nwu.edu>
- Date: 14 Aug 92 09:09:22 GMT
- Sender: Telecom@eecs.nwu.edu
- Organization: Digital Equipment Corporation
- Lines: 41
- Approved: Telecom@eecs.nwu.edu
- X-Submissions-To: telecom@eecs.nwu.edu
- X-Administrivia-To: telecom-request@eecs.nwu.edu
- X-Telecom-Digest: Volume 12, Issue 627, Message 3 of 16
-
- In article <telecom12.620.2@eecs.nwu.edu>, mrosen@nyx.cs.du.edu
- (Michael Rosen) writes:
-
- > Do *69 and Call Waiting mix? For example, say I'm on the phone and
- > receive another call on call waiting. I either ignore the call
- > because maybe the call I'm on is important or the other caller hangs
- > up before I can switch over. Will *69 ring back the person calling on
- > my call waiting or the person I'm talking to now (assuming they called
- > me, of course).
-
- To be honest, that depends on the kind of telephone switch your
- telephone is on AND on the kind of facilities (CCS 7 or not?) the
- call-waiting call came in. The Bellcore TR that describes the
- call-processing feature you use when you dial *69 specifies that you
- should ring back the person calling on your call waiting call, if
- possible (i.e. if the call came in on a "smart" facility (CCS7/ISUP)
- so that your switch knows the phone number to call back). The feature
- is known as "Automatic Recall", "Automatic Callback", or "Call
- Return", depending on which organization you talk to.
-
- As far as I know, if your phone is on a Northern Telecom DMS-100
- switch, this interaction will work. I know that because I coded about
- half of the software for this feature in 1988 (I worked at
- Bell-Northern Research at the time). The person who designed the Call
- Waiting/Automatic Recall interaction was a good friend of mine (her
- name is Heather Sinnott). But I do not know where in the world she is
- now, or where the other designers are.
-
- I am still amazed at the power of Usenet today. Do you know ANY
- other way in which you would have a fighting chance to FIND somebody
- who knows about this topic?
-
-
- Sincerely,
-
- Marc Chatel,
- Global Village Time-traveler, currently on contract with
- Digital Equipment Corporation Annecy, France
- E-mail: chatel_m@annecy.enet.dec.com
- Phone: (33) 50.09.42.56 FAX: (33) 50.64.01.39
-