Cable telephony network supporting roaming VoIP terminals

Details Cable telephony network supporting roaming VoIP terminals Cable telephony network supporting roaming VoIP terminals

2006-05-04

2009-08-04

Nguyen, Quynh H (Department: 2614)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C379S156000, C379S196000, C379S201010

Reexamination Certificate

active

07570631

ABSTRACT:
A cable infrastructure includes a plurality of cable modem circuits communicatively coupled to a cable network and associated with a corresponding one of a plurality of subscribers. Each of a plurality of telephones has both a POTS (Plain Old Telephone System) interface and a unique telephone number and associates with a corresponding one of the plurality of subscribers. Each of a plurality of interface circuits couples one of the plurality of cable modem circuits with a corresponding one of the plurality of telephones via the POTS interface. A head end system communicatively couples to the cable network, the public switched telephony network, and the Internet network and supports address mapping that enables communication exchanges between one of the plurality of telephones and an Internet telephony device. The address mapping also enables communication exchanges between telephones serviced by differing head ends via an Internet pathway that is independent of the public switched telephony network.

REFERENCES:
patent: 2005/0013421 (2005-01-01), Chavez et al.
patent: 2006/0050686 (2006-03-01), Velez-Rivera et al.
patent: 2006/0085832 (2006-04-01), Groff et al.
patent: 2006/0099934 (2006-05-01), Song et al.

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