“Roaming” method and apparatus for use in...
800 number callback
Abandoned call control and indication
Access to capabilities of other telephone stations
Access to extended telephone services via the internet
Access to unsubscribed features
Accessing a calendar server to facilitate initiation of a...
Active talker display for web-based control of conference calls
AD-HOC conferencing method
Adaptation of the call sequence by analysis of the history...
Adaptive call routing for multiple telephony terminals
Adaptive feature behavior
Adaptive rule-based mechanism and method for feature...
Adaptive, multi-channel teleconferencing system
Address information-exchange system, communication terminal...
Adjunct controller for a telephone system
Adjusting music length to expected waiting time while caller...
Advanced call sequencing service
Advanced call waiting processing
Advanced call waiting processing