Cable connected wan interconnectivity services for corporate...

Cable telephony network supporting roaming VoIP terminals

Calculation of clock skew using measured jitter buffer depth

Call center communications system for handling calls to a...

Call center queue administration

Call clearing for legacy mobile circuit switched domain...

Call control method between a packet network and PSTNs in...

Call control model for a packet-based intelligent...

Call control network, access control server and call control...

Call establishment method for dial-up internet telephony...

Call flow system and method for use in a legacy...

Call flow system and method use in VoIP telecommunication...

Call forwarding in an IP multimedia subsystem (IMS)

Call forwarding method

Call hold with reminder and information push

Call identification mechanism for multi-protocol telephones

Call management messaging system for integrating the...

Call notification feature for a telephone line connected to the

Call processing architecture

Call processing method and apparatus for mobile terminal in...