System and method for edge switch query using advanced...

System and method for effecting inside plant load balancing...

System and method for enhanced origination services for toll...

System and method for enhanced origination services for toll...

System and method for establishing communication services...

System and method for establishing long distance call...

System and method for establishing long distance call...

System and method for forwarding call from disconnected...

System and method for forwarding call from disconnected...

System and method for implementing telephony call control...

System and method for incoming telephone call distribution...

System and method for invocation of a check of a...

System and method for local number portability for...

System and method for major trading area (MTA) routing in a...

System and method for major trading area (MTA) routing in a...

System and method for major trading area (MTA) routing in a...

System and method for managing telephony network resources

System and method for mixed mode communications in an...

System and method for multi-stage data logging

System and method for normalizing private exchange output