Network session management
Network session management with gateway-directory services and a
Network spanning heterogeneous call center and method of...
Network support for caller ID verification
Network switch having a hybrid switch architecture
Network switching system with asynchronous and isochronous...
Network system and communication device
Network telephone communication
Network telephone system and methods therefor
Network telephony devices, softwares and methods for...
Network telephony interface systems between data network...
Network telephony interface systems between data network...
Network telephony interface systems between data network...
Network telephony interface systems between data network...
Network telephony system
Network telephony system
Network transfer system
Network with hot button for providing switched broadband...
Network, private branch exchange, and multi protocol...
Network, private branch exchange, and PBX additional service...