Expert call analyzer and next generation telephony network...

External positivistic forward transfer in call routing systems

Failsafe configuration for alternative network telephony

Failsafe configuration for alternative network telephony

Feature interactions

Feedback to calling communication device on call connected...

Feedback to calling communication device on call connected...

Flexible communication systems and methods

Flexible direct and shared termination call processing

Flexible enhanced signaling subsystem for a telecommunications s

Fully integrated telecommunication network

Gateway system having a redundant structure of media gateway...

General protocol for service control point

General protocol for service control point

Generalized arrangement for routing telecommunications calls

Geographical call routing for a non-emergency calling service

Geographical call routing for a non-emergency calling service

Geographical call routing for a non-emergency calling service

Geographical call routing for a non-emergency calling service

Geographical call routing for a non-emergency calling service