Apparatus and method for providing a unified telephony solution

Apparatus and method for providing call status information

Apparatus and method for providing VoIP service based on IP...

Apparatus and method for reducing delay for voice over ATM...

Apparatus and method for synchronous and asynchronous...

Apparatus and method for synthesizing management packets for tra

Apparatus and method for telephony feature access and...

Apparatus and method for transmitting and receiving signals...

Apparatus and method for using multiple call controllers of...

Apparatus and method for voice over IP traffic separation...

Apparatus and method of connecting computer network to...

Apparatus and method of minimizing delay of transmissions...

Apparatus and method to use a conventional telephone set to...

Apparatus and methods enhancing call routing to and within call

Apparatus and methods enhancing call routing to and within...

Apparatus and methods for coordinating internet protocol...

Apparatus and methods for managing multiple internet...

Apparatus and methods for per-session switching for multiple...

Apparatus and methods for use therein for an ISDN LAN modem that

Apparatus and methods in routing internet protocol network...