You can look at RFC 3325 "Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks". However, it does NOT offer a general privacy or identity model suitable for use between different trust domains, or use in the Internet at large.
Amit -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Shikhar Sarkar Sent: Friday, May 27, 2005 9:19 AM To: [email protected] Subject: [Sip-implementors] How should Caller ID be displayed Hello, I have a question on the caller-id interworking between PSTN and SIP. In PSTN, there are two cases: "anonymous" and "no caller id". "Anonymous" is used when the caller sets "presentation not allowed" in the Setup message. The "no caller id" is the case when caller id is genuinely not available (for example, interworking with decadic trunk, etc.). My question is: when sending SIP Invite, is there a way to distinguish the two cases. I checked in the SIP rfc and the only option I see is "anonymous". So how to handle it? Thanks, Shikhar Sarkar _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
