Path: utzoo!attcan!uunet!seismo!sundc!pitstop!sun!amdcad!ames!killer!vector!nobody
From: cmoore@BRL.MIL (VLD/VMB)
Newsgroups: comp.dcom.telecom
Subject: Touch tone compatibility
Message-ID: <telecom-v08i0180m05@vector.UUCP>
Date: 15 Nov 88 14:57:19 GMT
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X-TELECOM-Digest: volume 8, issue 180, message 5

To summarize what I have heard about touch tone phones:
Rotary-dial-compatibility is necessary in at least some non-electronic
exchanges.  I also understand that such a phone is still usable in an
electronic exchange.