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- Path: sparky!uunet!think.com!sdd.hp.com!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!telecom-request
- Date: Sun, 15 Nov 1992 19:27:33 EST
- From: Alistair Grant <100032.525@CompuServe.COM>
- Newsgroups: comp.dcom.telecom
- Subject: Re: Help Needed With DTMF Tones
- Message-ID: <telecom12.847.2@eecs.nwu.edu>
- Organization: TELECOM Digest
- 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 12, Issue 847, Message 2 of 17
- Lines: 17
-
- Hello,
-
- The response about DTMF tones was great. Every one says I need
- both tones, not the average -- ok -- but my physics book says that
- when two pure frequencies are emitted then the resultant frequency and
- frequency only is the average.
-
- Anyway with just one speaker how do I emulate two tones so as to
- fool the phone? I have seen watches that dial telephone number; how do
- they do it?
-
-
- Ta -
-
- Alistair GRANT
-
-