Path: utzoo!utgpu!water!watmath!clyde!att!pacbell!ames!netsys!vector!nobody From: chip@vector.UUCP (Chip Rosenthal) Newsgroups: comp.dcom.telecom Subject: Re: Protocols Message-ID:Date: 24 Sep 88 21:18:32 GMT Sender: chip@vector.UUCP Reply-To: chip@vector.UUCP (Chip Rosenthal) Lines: 20 Approved: telecom-request@vector.uucp (USENET Telecom Moderator) X-TELECOM-Digest: volume 8, issue 147, message 5 X-Submissions-To: telecom@xx.lcs.mit.edu (Mailing List Coordinator) X-Administrivia-To: telecom-request@vector.uucp (USENET Telecom Moderator) In article lotus!bobf@GARP.MIT.EDU writes: >Does anyone know if there are billing protocols in ISDN that would allow an >intelligent instrument and/or a service provider know the cost of a call as it >is being placed? I assume the question being asked is "would the D-channel support automatic call cost information?" Not really. The types of messages which go through the D-channel are more along the lines of call service requests (i.e. setup, connect, disconnect, release) and acknowledgements. (There are some neat extensions, though.) It is not well suited for this sort of thing. However, there is nothing which prevents your local carrier from providing you such a service. You would need some intelligence built into your telephone so that it would go out and inquire the carrier's database for billing information, and then proceed to connect the call. -- Chip Rosenthal chip@vector.UUCP | I've been a wizard since my childhood. Dallas Semiconductor 214-450-0486 | And I've earned some respect for my art.