Methods and apparatus for enhancing the scalability of IMS in VoIP service deployment

摘要

Methods for Enhancing the Scalability of IMS in VoIP Service Deployment lower the number of messages transmitted between functions of an IMS network. The number of messages transmitted between functions of an IMS network are lowered by storing and utilizing predetermined configuration information pertaining to the calling and called parties including the media and codecs the parties support. The predetermined configuration information, which may be based on a prior peering business agreement, supports the implementation of a one round procedure for establishing an IMS communication session.