System interface supporting IP endpoint data exchange and...

System optimized always on dynamic integrated services...

System to provide lifeline IP telephony service on cable...

System using a signaling protocol for controlling voice...

System using a signaling protocol for controlling voice...

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System, device and method for providing call forwarding in...

System, device and method for providing call forwarding in...

System, device, and method for interworking between a...

System, device, and method for providing data to a call...

System, method and article of manufacture for a call back...

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System, method and article of manufacture for selecting a...

System, method and article of manufacture with integrated video

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Systems and method for automated monitoring of availability...