A method for signaling an Integrated Messaging System (IMS) on an Internet Protocol (IP) based network to deposit a message, including the steps of sending a Session Initiation Protocol (SIP) SIP INVITE request to the IMS indicating a message deposit action; receiving a corresponding SIP message from...http://www.google.se/patents/US7167468?utm_source=gb-gplus-sharePatent US7167468 - Internet protocol telephony voice/video message deposit and retrieval
