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- From: yazz@oolong.la.locus.com (Bob Yazz)
- Newsgroups: comp.dcom.telecom
- Subject: Re: "rrrringg-BOOP"
- Message-ID: <telecom12.866.4@eecs.nwu.edu>
- Date: 22 Nov 92 03:07:13 GMT
- Sender: Telecom@eecs.nwu.edu
- Organization: TELECOM Digest
- Lines: 24
- 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 866, Message 4 of 12
-
- > [Moderator's Note: Actually, if you listen closely, when the called
- > party answers you will hear a certain kind of click on the line if you
- > interuppted them on call waiting which you won't hear if you did not.
-
- If you phone someone on a DMS switch that has certain older software
- revisions installed, there is a subtle difference in how you hear
- ringback tone if you've come in as a call-waiting beep. The first
- ring that you hear is short; that is, you come into the ring cycle at
- a slightly different spot.
-
- I regret that this feature was removed in later software revisions;
- what with Caller ID and all, I can't imagine how this would constitute
- an invasion of privacy. Does anyone know what Northern Telecom's
- rationale was for this change, or why a BOC like Pac Bell would
- request it?
-
- The same short-first-ring occurs with error recordings generated by
- the local switch, which I think is a 5ESS (619/587). If you listen
- carefully, these error ringback tones also waver in pitch slightly,
- like a slightly off-center record.
-
-
- Bob Yazz
-