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From: ark@alice.UUCP
Newsgroups: sci.electronics,sci.med
Subject: Re: Injury via Phone
Message-ID: <7216@alice.UUCP>
Date: Fri, 21-Aug-87 13:08:33 EDT
Article-I.D.: alice.7216
Posted: Fri Aug 21 13:08:33 1987
Date-Received: Sun, 23-Aug-87 11:36:19 EDT
References: <414@gtx.com>
Organization: AT&T Bell Laboratories, Liberty Corner NJ
Lines: 7
Xref: mnetor sci.electronics:1199 sci.med:2983

In article <414@gtx.com>, al@gtx.UUCP writes:
> One often hears about people blowing whistles or air horns into a
> telephone to thwart obscene callers. Is a telephone capable of
> transmitting enough sound amplitude to cause pain or damage to the ears?

I highly doubt it.  Telephone transmission lines must be
sharply amplitude-limited to keep crosstalk in check.