Call record management for high capacity switched virtual...

Call redirection methods in a packet based communications networ

Call redirection methods in a packet based communications...

Call restricting method in packet switching network and network

Call restriction system for an ATM exchange

Call routing in a location-aware network

Call routing in a telecommunication system

Call routing in an ATM switching network

Call routing interface for satellite communications user...

Call routing method for 3G.IP networks

Call routing method in VoIP based on prediction MOS value

Call routing method in VoIP based on prediction MOS value

Call service initialization arrangement

Call set-up and service invocation in telecommunications...

Call set-up method using SIP-T overlap signaling

Call set-up server

Call setting method for network system

Call setup and channel allocation for a multi-media network bus

Call setup control apparatus in ATM switch

Call setup for IP/Internet telephony