benny@vlss.amdahl.com (Benny Schnaider) (09/15/90)
Has anybody come across a the "caller ID" protocol ?
Where can I find technical information about it ?
Benny.
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Benny Schnaider benny@vlss.amdahl.com
Amdahl Corporation, 1250 EAST Arques Avenue,
M/S 246, Sunnyvale CA, 94088-3470
(408) 296 - 0596, (408) 737 - 7883
-----------------------------------------------------------------ropg@ooc.uva.nl (Rop Gonggrijp) (09/16/90)
I know that there are different protocols agreed upon by different phone companies. The American network uses a 300 baud data FSK modulated burst between the first and second ring (or so I am told) The Dutch system does not have Caller ID but internal phone company docs are said to say that it will be a DTMF (touch-Tone) string BEFORE the first ring. I wish I had more specifics...... Rop Gonggrijp (ropg@ooc.uva.nl)
dave@westmark.WESTMARK.COM (Dave Levenson) (09/22/90)
In article <13202@slice.ooc.uva.nl>, ropg@ooc.uva.nl (Rop Gonggrijp) writes: > > I know that there are different protocols agreed upon by different phone > companies. The American network uses a 300 baud data FSK modulated burst > between the first and second ring (or so I am told) You were told wrong. It is FSK but it's at 1200 bps. Order Bellcore Technical References: TR-TSY-000030: SPCS Customer Premises Equipment Data Interface and TR-TSY-000031: CLASS(sm) Feature: Calling Number Delivery. To order these or other Bellcore documents, contact: Bellcore Customer Service 60 New England Avenue, Room 1B252 Piscataway, NJ 08854-4196 (908) 699 5800 They'll accept phone orders with credit cards. Tech refs cost about $20 each. -- Dave Levenson Voice: 908 647 0900 Fax: 908 647 6857 Westmark, Inc. UUCP: {uunet | rutgers | att}!westmark!dave Warren, NJ, USA Internet: dave@westmark.com [The Man in the Mooney] AT&T Mail: !westmark!dave