Channel transfer with retrieve

Details Channel transfer with retrieve Channel transfer with retrieve

H - Electricity

04

J

H04J 3/17 (2006.01) G11B 23/00 (2006.01) H04Q 3/00 (2006.01)

Patent

CA 2281827

Method and apparatus for transferring a call leg in a telecommunication net-work and releasing it to free up resources, while allowing retrieval at a later time under specified conditions. Message extensions are provided for interfaces used between service nodes and host switches in a telecommunication networks. The invention is appropriate for use in an integrated services digital network (ISDN), in an internet protocol (IP) telephony network, or in any other type of telecommunication network. The service node sends a transfer request and retrieval conditions to the switch. The switch stores the conditions and transfers the channel with the appropriate call leg, but can retrieve the call leg when one of the conditions is met.

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