WebSphere brand IBM WebSphere Presence Server, Version 7.0

Integrating with supported network elements

Presence Server interacts with a group list server, using several of the features in IBM® WebSphere® XML Document Management Server Component (IBM XDMS). It also uses SIP external sources for retrieving presence information. For example, the Serving-Call/Session Control Function (S-CSCF) acts as an external registrar for retrieving registration information about users.

S-CSCF

Presence Server uses the Serving-Call/Session Control Function (S-CSCF) as a registrar. The registrar tracks where a user can be contacted and provides that information to callers.

S-CSCF is one possible source for SIP external data, which can be used to provide a rich source of registration information about users.

For details about setting up your configuration, see the topic Configuring Presence Server to interact with S-CSCF sources.

SIP external sources

Presence Server also interacts with other SIP external sources, for example external communities.

For details about setting up your configuration, see the topic Configuring for SIP external sources.

IBM XDMS

Presence Server uses the XML XCAP and SIP as the communication mechanisms with a group list server, such as IBM XDMS, for SIP SUBSCRIBE and NOTIFY messages. IBM XDMS is used for storing group lists (resource lists), for retrieving authorization lists (black and white lists), and for getting presence rules documents.

Important: You must install Presence Server and IBM XDMS on the separate physical servers.

For details about setting up your configuration, see the topics Configuring for integration with IBM XMDS server and Configuring authorization.




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