Path: utzoo!attcan!uunet!lll-winken!ames!killer!vector!telecom-gateway From: jbn@glacier.stanford.edu (John B. Nagle) Newsgroups: comp.dcom.telecom Subject: Re: Calling party ID Message-ID: Date: 17 Mar 89 17:39:35 GMT Sender: news@vector.UUCP Reply-To: "John B. Nagle" Organization: Stanford University Lines: 21 Approved: telecom-request@vector.uucp X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@vector.uucp X-TELECOM-Digest: volume 9, issue 95, message 5 of 5 Questions: 1. What happens when a call is originated from a PBX extension? Is the number displayed just the identity of the outgoing PBX trunk? Even assuming a PBX wants to cooperate and pass internal extension numbers outward, is there a defined interface for this? What happens when the outgoing trunk has is outgoing only and has no telephone number, which is not that unusual? 2. What about inter-LATA calls? Which vendors pass the caller ID through, or plan to? Will the FCC mandate that caller ID be passed across long distance carriers? 3. What about international calls? 4. Can the receiver distinguish "caller ID suppressed" from "caller ID not known"? 5. Is someone working on a modem that understands caller ID signals? John Nagle