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Presence Architecture and Flow Diagrams

Presence Architecture and Flow Diagrams. Date-1 st Nov 2005. Presence. Cross domain (wireless, PSTN, VoIP as presence sources) Cross federation (multiple administrative domains) Interaction of different components ( PA, UA, XCAP Server, Resource List Server) Basic presence block diagram

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Presence Architecture and Flow Diagrams

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  1. Presence Architecture and FlowDiagrams Date-1st Nov 2005

  2. Presence • Cross domain (wireless, PSTN, VoIP as presence sources) • Cross federation (multiple administrative domains) • Interaction of different components ( PA, UA, XCAP Server, Resource List Server) • Basic presence block diagram • Presence server data processing • Presence data management of user having identities in multiple domains.

  3. SCP PSTN SIP PUBLISH SIP PUBLISH SIP PUBLISH Presence Server Presence Server Watchers/Buddies for one presentity Presence Database Presence Server Presence Server Wireless Network Presence Server Watchers/Buddies for one presentity IM SIP Phone TV Broadband IP Network (VoIP, Internet) Cross-domain presence SIP NOTIFY SIP SUBSCRIBE

  4. Logical and actual flow of messages being shown to domains that are logically or physically separatedfrom an external domain. Presentities in different logical and physical sub domains Inter-domain presence: Cross federation external-domain.com SUBSCRIBE NOTIFY SUBSCRIBE NOTIFY SIP Proxy Server Presence Agent pa.columbia.edu Presence Agent pa.cs.columbia.edu PUBLISH Presence Agent pa.campus1.columbia.edu PUBLISH PUBLISH Logical sub-domain: cs.columbia.edu Branch Office I

  5. Interaction between different presence protocols Buddy List Update, Policy Update, Authorization. Presentity Watcher XCAP Server PUBLISH [presence] NOTIFY [presence] Auth Policy, Resource List SUBSCRIBE [presence] SUBSCRIBE [Watcher-Info] Presence Agent (resource-list, composition, Filtering etc. NOTIFY [Watcher-Info] SUBSCRIBE [reg] NOTIFY [reg] REGISTER SIP Proxy/ Registrar

  6. Basic block diagram presence agent PUBLISH Presentity SUBSCRIBE Watcher NOTIFY NOTIFY NOTIFY SIP Proxy/ Registrar REGISTER

  7. Presence Sources PSTN Phone, Cell Phone, VOIP Client candidate presence document privacy filtering Composition PUBLISH candidate presence document Composition Policy Presence Authorization Presentity specified filter NOTIFY Watchers final presence document filtered presence document Watcher Filter Post Processing Composition NOTIFY SUBSCRIBE specifies watcher filter NOTIFY Presence server data processing

  8. DB PUBLISH sip:alice Presence Server SUBSCRIBE sip:alice@xyz.com REGISTER sip:alice REGISTER sip:alice NOTIFY sip:alice@xyz.com PUBLISH sip:alice SUBSCRIBE pres:alice@yahoo NOTIFY pres:alice@yahoo Alice’s Wireline Phone Yahoo Server Alice’s Cell Phone alice@yahoo.com Presence data management for a user having identities in multiple domain

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