Patent ID: 6914973
Filing Date: 2005-07-05
Classification: H04M

Abstract:
1. A method for improving media trunk utilization for calls directed to ported numbers, the method comprising: at a routing node: (a) receiving a first call setup message associated with a call in a communications network; (b) determining whether the call is directed to a ported directory number; (c) in response to determining that the call is directed to a ported directory number, extracting called party information from the call setup message and performing a lookup in a number portability database using the called party information to locate a routing number for the called party; (d) selecting an outgoing media trunk from a media gateway for the call based on the routing number; (e) forwarding a media-gateway-compatible message to the media gateway associated with the media trunk; and (f) formulating a second call setup message and forwarding a second call setup message to an end office to which the directory number has been ported.