APPARATUSES AND METHOD FOR GENERATING AND TRANSMITTING AN ANONYMOUS ROUTING IDENTIFIER TO MAINTAIN PRIVACY OF A SIP USER AGENT'S IDENTITY

摘要

A method for facilitating a Session Initiation Protocol (SIP) communication by a user agent (12) having a user agent identity while maintaining anonymity of the user agent (12), said method comprising: sending a request comprising a field populated with a value indicating a request for an anonymous globally routable user agent uniform resource identifier; and receiving a response (46) comprising the anonymous globally routable user agent uniform resource identifier (58), wherein the anonymous globally routable user agent uniform resource identifier comprises a network address identifier that does not disclose the user agent identity during subsequent SIP communications.