Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!zaphod.mps.ohio-state.edu!uwm.edu!bionet!hayes.ims.alaska.edu!accuvax.nwu.edu!nucsrl!telecom-request
From: yazz@prodnet.la.locus.com (Bob Yasi)
Newsgroups: comp.dcom.telecom
Subject: Re: What is "Supervision"?
Message-ID: <14258@accuvax.nwu.edu>
Date: 1 Nov 90 21:18:41 GMT
Sender: news@accuvax.nwu.edu
Organization: Locus Computing Corp, Los Angeles
Lines: 22
Approved: Telecom@eecs.nwu.edu
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 10, Issue 784, Message 2 of 12


>What is meant by "supervision?"

I know other responses have been posted, but I thought a simple answer
to a simple question would help.  Anyone looking for technical
completeness will NOT find it in this post!  (:-) You Will understand
supervision tho:

When you call your friend long distance, you shouldn't have to start
paying for the call until your friend actually answers the phone.  The
signal (from his end) that tells the billing equipment (at your end)
that your friend picked up the phone is called supervision.

There are lots of situations when supervision is NOT provided, and
these tend to be the subject of discussion, since phone bills get
screwed up as a result.  Equipment that doesn't get supervision
generally makes guesses as to when and whether the phone was answered.

Hope this helps.


 -- Bob Yazz --  yazz@Locus.com