| 摘要 |
Embodiments of the present invention provide a method, system and computer program product for deploying and delivering composite services in an NGN network. In one embodiment of the invention, a channel presence detection method for a composite services enablement environment can include establishing multiple channels of access to a common session for a composite service, synchronizing changes of state for a model for the common session in the views for the channels of access to the composite service, and periodically indicating in at least one of the views, a listing of the established channels of access. In one aspect of the invention, periodically indicating a listing of the established channels of access can include detecting an update to the model indicating a change in established channels of access to the common session. In response, a hidden view for an end point for an established channel of access to the common session can be provided with an updated listing of other established channels of access to the session. Consequently, the hidden view can provide the updated listing to a corresponding visible view in the end point.
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