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- Path: sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!telecom-request
- Date: Thu, 31 Dec 1992 21:25:26 GMT
- From: dross@cambizola.cs.wisc.edu (Dan Ross)
- Newsgroups: comp.dcom.telecom
- Subject: TDD: Possible on Mac With Mike?
- Message-ID: <telecom12.928.9@eecs.nwu.edu>
- Organization: U of Wisconsin Madison - Computer Sciences
- 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 928, Message 9 of 13
- Lines: 26
-
- Does anyone know/have experience with implementing TDD on a Apple
- Macintosh with a microphone? (This means the sound generating
- hardware (speaker) and input hardware (microphone, a-to-d/whatever)
- are already there.) It seems like one could use just software to
- decode the incoming signals (or to generate outgoing signals). The
- physical connection to the phone line might be a problem, but since
- it's a carrierless protocol, one could just take a phone off the hook
- and dial manually, then line up the speaker and microphone with the
- handset.
-
- There IS computer software to decode RTTY and FAX transmissions on
- shortwave -- is there anything special about TDD that would make this
- impossible? It seems perfect (for Mac users, at least) since regular
- modems can't do TDD and TDD modems are relatively expensive.
-
- I wouldn't know how to program the frequency recognition part -- does
- anyone know of any good books or references on this?
-
- Also, is there a standard reference for TDD protocols? (I've heard
- there's no standard-standard, like V.22 etc., but does just a "most
- common usage" description exist?)
-
-
- Dan Ross dross@cs.wisc.edu
-
-