System and method for gatekeeper-to-gatekeeper communication

System and method for generating multiple line appearances...

System and method for generating multiple line appearances...

System and method for gradual transition of local phone...

System and method for handling V.8bis signals for modem...

System and method for hierarchical switching

System and method for high capacity/failure tolerance...

System and method for history driven optimization of web...

System and method for implementing user-to-user data transfer se

System and method for implementing user-to-user data...

System and method for implementing user-to-user information...

System and method for implementing XoIP over ANSI-136-A...

System and method for improving communication between a...

System and method for increasing call capacity for a...

System and method for increasing the range or bandwidth of a...

System and method for integrating voice on network with...

System and method for interfacing a broadband network and a...

System and method for interfacing signaling information and...

System and method for internet protocol telephony...

System and method for internet reservation service