Call routing system and method

Details Call routing system and method Call routing system and method

2006-04-18

2006-04-18

Bui, Bing Q. (Department: 2642)

Telephonic communications

Plural exchange network or interconnection

With interexchange network routing

C379S221010, C379S272000, C379S273000

Reexamination Certificate

active

07031450

ABSTRACT:
A method and system is provided wherein routing information is obtained from previously cached information or from a gatekeeper. An originating gateway in a network receives a request for a connection and determines whether pertinent routing information is cached. If available, the cached routing is used to attempt to establish a connection. If no previously established routing is available, the originating gateway requests preferred routing from a gatekeeper, including prioritized selections of terminating gateways through which to make a connection to a designated call recipient.

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