Path: utzoo!telecom-request Date: Wed, 29 May 1991 03:49:32 GMT From: Bud Couch Newsgroups: comp.dcom.telecom Subject: Re: Ringing Tones Around the World Message-ID: Organization: Kentrox Industries, Inc. Sender: Telecom@eecs.nwu.edu Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 11, Issue 409, Message 4 of 10 Lines: 21 In a recent post, our illustrious Moderator wrote: > [Moderator's Note: I don't know if you meant it the way it came out, > but the telephone instrument has *nothing* to do with the ring you > hear as the caller. What you heard must have been some kind of fluke; > some temporary switch problem. PAT] Most C.O. switches built in the last ten years *deliberately* divorce the ringback tone heard by the calling party from the acrual ringing sound at the called party's phone. This has been done to cut down on revenue "leakage" due to ringing code schemes: "Well, when we get to Aunt Gertie's house, we'll call and leave it ring three times." Modern switches, in general, return ringback both slower and asynchronously from the actual ringing in order to foul up those schemes. "Why did you answer? It only rang twice." "Twice? It started on the fourth ring here!" Bud Couch - ADC/Kentrox If my employer only knew standard BS applies