Cristian Constantinof

Transit trunk subnetwork system

Method and apparatus for reduction of call setup rate in an ATM network

Method and apparatus for session control

Voice continuity among user terminals

Apparatus and method for completing inter-switch calls using large trunk groups

Providing access to enterprise services by using corresponding IDs

Controlling services in a circuit-switched network from a packet network

Providing access to enterprise and carrier services using corresponding user identifiers

Système d'un sous-réseau de lignes d'extérieur de transit

System bestehend aus einem Durchgangsleitungssubnetzwerk System consisting of a Durchgangsleitungssubnetzwerk