METHOD AND SYSTEM FOR SIP BASED DYNAMIC ADVERTISEMENT OF PRESENCE INFORMATION

摘要

PURPOSE: A method and a system for a sip based presence information dynamic advertisement are provided to directly transmit a presence invite message to only a selected small number of people. CONSTITUTION: A presence inviting person discloses a presence invitation message. A presence invitation message is distributed by a presence invitation letter distributor. Presence invited people accept the presence invitation message. The presence invited guests correspond to currently activated watchers of the presence inviting person or watchers who do not subscribe to presence yet.