Methods and Anchor nodes to locate a node session Emergency voice communications in a Network server to transfer a session Emergency Voice

摘要

A method for locating a node Anchor Meeting Emergency Voice (212) among a Plurality of Anchor nodes in such a subsystem of an Internet Protocol Multimedia Communication Network Server (200) to transfer a meeting Emergency Voice,A terminal of a Radio Access Network of origin for Packet Switched (260) to a Target Radio Access Network (278) associated with a Circuit Switched Domain, both in the Network Communications Server (200).The meeting Emergency Voice clips on the relevant Anchor node (212) and the transfer of meeting Emergency Voice uses the continuity of voice session. The Anchor node of meeting Emergency Voice (212) is identified by an identifier of Node. The method is implemented by the anchor node of meeting Emergency Voice (212).The Method comprises sending (240) The node identifier of the node Anchor Meeting Emergency Voice (212) to a control node (206) of the domain by Circuit Switched Communications Network Server (200) for the location of the anchor node Voice Meeting Emergency (212).Therefore, can be an admission of a reliable Transfer of meeting the meeting Emergency Voice of the Radio Access Network of origin for Packet Switched (260) to the Radio Access Network (278) associated with the domain of the Circuit Switched Communication Network S Server (200).