Receiving a session establishment request on a client and notifying another client that the session is available for retrieval by the other client

摘要

A method and apparatus for establishing a communication session with a user in a telecommunications network. The session is to be established between a remote device and one of a plurality of communication clients. Each of the clients is on a user device at which the user may participate in the session. A communication session control system located in a signalling path for the session transmits a session establishment request to a given client to place that client in a prior-to-answer session state. In response, the system receives a requestfrom that client that the option to establish the session with the remote device be made available to at least one client of the plurality of clients other than the given client. The system transmits notification data to the at least one other client to notify that the session is available for retrieval by the at least one other client. It provides the ability to hold a communication session on one client and to enable the held communication session to be retrieved on any other client, which may be on the same or different (e.g. twinned) device.