High capacity information forwarding system
Holding party call back subscriber feature
Hybrid network call delivery routing using a serving...
Identifying call parties to a call to an incoming calling party
IMS subscriber access control
Intelligent network call terminating method in intelligent netwo
Intelligent network services
Intelligent peripheral and network control
Intelligent remote caller ID
Intelligent service peripheral/intelligent peripheral
Intelligent services network architecture for global calling...
Inter-exchange carrier access selection feature for a PBX user
Interactive electronic ordering for telecommunications...
Interactive subscriber telephone terminal with automatic managem
Intercepting call communications within an intelligent network
Intermediate switch service management system architecture and m
Local exchange subscriber line conferencing method
Local number portability service saver
Location-based ringbacks
Management of calling name delivery in telephone networks provid