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From: ISW@cup.portal.com (Isaac S Wingfield)
Newsgroups: sci.electronics
Subject: Re: Ringing telephones with line voltage
Message-ID: <17997@cup.portal.com>
Date: 5 May 89 19:47:24 GMT
References: <636@serene.UUCP> <920@snjsn1.SJ.ATE.SLB.COM> <3139@kitty.UUCP> <5012@charon.unm.edu> <3144@kitty.UUCP>
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Organization: The Portal System (TM)
Lines: 10

When I was in College, I did a lot of technical theatre work; one
of the things we never could "realistically" record and play back
was the sound of a ringing phone on stage. We regularly rang
standard issue phones from the power line. (We always wired the 
ring voltage through the hook switch, and instructed the performers
to pick up "during a ring"; it was more realistic that way).

Of course these were POTS phones, probably 500 series.

Isaac   isw@cup.portal.com