Call control server selection with load sharing mechanisms

Details Call control server selection with load sharing mechanisms Call control server selection with load sharing mechanisms

H - Electricity

04

Q

H04Q 3/47 (2006.01) H04L 29/06 (2006.01)

Patent

CA 2318622

A system and method is provided for intelligently selecting a call control server (or call session control functions) from a plurality of call control servers, for processing calls in a telecommunications network. The disclosed method is an optimal solution for a connectionless packet network which uses a connectionless network protocol such as IP or OSI CLNP. The method uses network addresses as the only basis for assigning loads to different call session control functions. First, a network address translating device (NATD) is provided with a first network address shared by all the call control servers. Then, each call control server's work load is updated periodically, and an appropriate call control server is selected by the NATD for processing at least one packet for a communication transaction. The NATD may then identify a second network address for the selected call control server based on a predetermined load sharing mechanism, and only the first network address of the call control servers is known to the packet.

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