ATM-based distributed network switching system
ATM-based distributed virtual tandem switching system
ATM-based distributed virtual tandem switching system
ATM-based distributed virtual tandem switching system
ATM-based distributed virtual tandem switching system
ATM-based private network having short-cut speech path and...
Audible communication with a modem over a wide area network
Audio band signal transmission system and method
Audio gateway device
Audio packet switching system
Audio watermarking for call identification in a...
Audio/video synchronization using audio hashing
Audio/visual information dissemination system
Auto-provisioning of user equipment
Automated attendant multimedia session
Automated cross-box and methods for using an automated...
Automated gateway routing, incoming and outgoing
Automated method and system for selectively updating...
Automated method and system for selectively updating...
Automatic backup trunking for voice over the internet