This invention provides a method, system and apparatus for allowing media context sensitive SIP signaling exchange (such as voice) and call establishment while denying or challenging any other session description protocol (“SDP”) extension dialogs which might not be desired (such as instant messaging, video, Web broadcasting or pushing, data and/or application sharing and the like) by a user. The method and apparatus may further include defining user client media policy preferences, the user media policy preferences establishing the parameters for evaluating a media session request received by a user client, and providing the user client media policy preferences to a policy enforcement point device, the policy enforcement point device evaluating the media session request received by the user client and applying the user client media policy preferences to the media session request. The method and apparatus may further include utilizing a user client portal to gain access to a media policy database, the media policy database providing storage for user client media policy preferences.

Method and system for trusted contextual communications

Method, for use in a telecommunications network, of selecting from a plurality of composite services a composite service to be executed in response to a network event. Each composite service has associated therewith criteria including a Boolean expression determining whether or not the composite service may be executed in response to the network event. The method comprises composing, for the network event, for each composite service an indicator indicating a) whether or not the criteria for that composite service are met by the network event, and b) a measure of conformity of the network event with said criteria. The method further includes selecting the composite service having associated therewith the indicator indicating that the criteria are met, and indicating closest conformity.

Method of selecting a composite service from a plurality of composite services

The invention discloses a P2P business node selection method base on an IMS and an apparatus, and is applied to distributed-type P2P content distribution systems based on IMSs. According to the P2P business node selection method base on the IMS and the apparatus, in a process that a Peer node establishes a conversation with a Tracker application server through sending an Invite message, a SBC or/and a P-CSCF which the Invite message passes adds own identifications to the message to show an access position of the node. When the Tracker application server selects a service node for the Peer node, the selection is carried out according to the access position of the Peer node. Through the adoption of the P2P business node selection method base on the IMS and the apparatus of the invention, the selection of the service node can be optimized.

A P2P business node selection method base on an IMS and an apparatus

In one embodiment, a network device determines one or more conditions for invoking one or more real applications to the network device for a session This determination may be made at the initiation of the session, such as when a SIP INVITE message is received The one or more conditions allow real applications to be invoked when a future event satisfies the condition When it is determined that a condition is satisfied, a real application associated with the condition is then invoked Accordingly, conditions may be set for real applications that may be tested against future events that have not yet occurred This allows deferred invocation of real applications Accordingly, if real applications are not needed for a session, then they are not invoked But, when a real application is needed, it can be invoked

Narasimha R. Rachumallu

Papers

Deferred invocation of communication services