Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!texbell!vector!telecom-gateway From: fff@mplex.UUCP (Fred Fierling) Newsgroups: comp.dcom.telecom Subject: ISDN Subscriber Equipment Message-ID:Date: 23 Sep 89 02:47:57 GMT Sender: news@vector.Dallas.TX.US Organization: Microplex Systems Ltd Lines: 11 Approved: telecom-request@vector.dallas.tx.us X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@vector.dallas.tx.us X-TELECOM-Digest: volume 9, issue 399, message 3 of 9 >From what I've read I understand that the U interface would be provided via an single pair coming from the CO to the subscriber's premises and terminate on an NT1 box which would provide the S/T interface to all digital telephones on the premises. Assuming this is correct, I understand that it would be possible for two independent calls to be handled on each of the B channels. So, how would both telephones perform call set up and tear down on the one D channel? Fred Fierling Tel: 604 875-1461 Microplex Systems Ltd, 265 East 1st Avenue uunet!mplex!fff Fax: 604 875-9029 Vancouver, BC, V5T 1A7, Canada