Presence Server

Presence is a service which can be applied as a supplement to many other services, such as voice, gaming and IM. Presence Servers collate presence information from presence clients and subsequently distribute this information to interested parties. SIP provides a presence architecture through use of the SUBSCRIBE, NOTIFY and PUBLISH methods.


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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