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

System and method for operating a plurality of call centers

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

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 busy signal to a communication

System and method for providing a communication session

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