Interactive electronic ordering for telecommunications...
Interactive electronic ordering for telecommunications...
Interface for interfacing client programs with network...
Interface for providing connection of a switch and a VMS...
Intermeshed communication network
International toll-free calling process
Internationally accessible communications
Internet protocol compliant private branch electronic...
Internet telephone adapter
Interworking between services in telecommunications network
Interworking of multimedia and telephony equipment
Interworking of multimedia and telephony equipment