System for providing simultaneous voice and data transmission

System for sending text messages converted into speech...

System for supporting multiple internet service providers on...

System for switching from an established media path to a new...

System for transmitting data between circuit boards in a...

System for transporting sub-rate data over a communication...

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...

System, device and method for expediting control flow in a...

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...

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

System, method and article of manufacture for communications uti

System, method and article of manufacture for cross-location reg