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

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

System and method for forwarding call from disconnected...

System and method for forwarding call from disconnected...

System and method for incoming telephone call distribution...

System and method for local number portability for...

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

System and method for operating a plurality of call centers

System and method for performing a task with telephone line...

System and method for processing international telephone numbers

System and method for processing ported calls

System and method for processing ported calls

System and method for providing a communication session

System and method for providing a dial plan conversion in a...

System and method for providing call management services in...

System and method for providing calling name services with...

System and method for providing communications services

System and method for providing data connections between an...

System and method for providing intercept of international...

System and method for re-routing incoming calls