Protected IP telephony calls using encryption

Details Protected IP telephony calls using encryption Protected IP telephony calls using encryption

2004-10-26

2010-06-08

Zia, Syed A. (Department: 2431)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular node for directing data and applying cryptography

C713S171000, C380S201000, C380S202000, C370S338000, C370S389000, C379S211020, C455S417000, C455S445000, C709S239000

Reexamination Certificate

active

07734908

ABSTRACT:
Communication information transmitted in the broadband communication system may be in a packet format and secured using encryption techniques, for example encryption software, including a means for providing an initial security key and updated security keys to the various pieces of communication equipment located throughout the broadband communication system. When communication equipment, for example a gateway, is first registered with, for example, an IP central station, the IP central station assigns an initial encryption key to the gateway that is assigned and retained by a server, for example a call manager server, and the gateway (e.g., broadband residential gateway). This initial encryption key may be used to establish a secure two way communication between two pieces of communication equipment as an originating point communication equipment and a terminating point communication equipment.

REFERENCES:
patent: 4694487 (1987-09-01), Chang et al.
patent: 4887152 (1989-12-01), Matsuzaki et al.
patent: 4926462 (1990-05-01), Ladd et al.
patent: 5099509 (1992-03-01), Morganstein et al.
patent: 5260778 (1993-11-01), Kauffman et al.
patent: 5268958 (1993-12-01), Nakano
patent: 5278894 (1994-01-01), Shaw
patent: 5400327 (1995-03-01), Dezonno
patent: 5416842 (1995-05-01), Aziz
patent: 5440616 (1995-08-01), Harrington et al.
patent: 5471523 (1995-11-01), Smith et al.
patent: 5533111 (1996-07-01), Schlanger
patent: 5590184 (1996-12-01), London
patent: 5615257 (1997-03-01), Pezzullo et al.
patent: 5657426 (1997-08-01), Waters et al.
patent: 5712903 (1998-01-01), Bartholomew et al.
patent: 5719872 (1998-02-01), Dubberly et al.
patent: 5745559 (1998-04-01), Weir
patent: 5745569 (1998-04-01), Moskowitz et al.
patent: 5761306 (1998-06-01), Lewis
patent: 5768389 (1998-06-01), Ishii
patent: 5809126 (1998-09-01), Smith et al.
patent: 5822415 (1998-10-01), Gordon
patent: 5841839 (1998-11-01), Fogg et al.
patent: 5905776 (1999-05-01), Shaffer
patent: 5933490 (1999-08-01), White et al.
patent: 5937347 (1999-08-01), Gordon
patent: 5940598 (1999-08-01), Strauss et al.
patent: 5974142 (1999-10-01), Heer et al.
patent: 6005602 (1999-12-01), Matthews, III
patent: 6005845 (1999-12-01), Svennesson et al.
patent: 6009177 (1999-12-01), Sudia
patent: 6014379 (2000-01-01), White et al.
patent: 6028933 (2000-02-01), Heer et al.
patent: 6078582 (2000-06-01), Curry et al.
patent: 6157708 (2000-12-01), Gordon
patent: 6215585 (2001-04-01), Yoshimura et al.
patent: 6219045 (2001-04-01), Leahy et al.
patent: 6226358 (2001-05-01), Schwartz et al.
patent: 6236653 (2001-05-01), Dalton et al.
patent: 6259449 (2001-07-01), Saxena et al.
patent: 6397080 (2002-05-01), Viktorsson et al.
patent: 6459783 (2002-10-01), March et al.
patent: 6543051 (2003-04-01), Manson et al.
patent: 6546238 (2003-04-01), Nightingale et al.
patent: 6690663 (2004-02-01), Culver
patent: 6736017 (2004-05-01), Mansky
patent: 6889321 (2005-05-01), Kung et al.
patent: 2002/0101860 (2002-08-01), Thornton et al.
patent: 0 845 894 (1998-06-01), None
patent: 0 848 560 (1998-06-01), None
patent: 0 928 095 (1999-07-01), None
patent: 2 305 090 (1997-03-01), None
patent: WO 99/62242 (1999-12-01), None
Japanese Patent Laid Open Publication No. Hei 11-225169, Published Aug. 17, 1999.
Japanese Patent Laid Open Publication No. Hei 10-070566, Published Mar. 10, 1998.
Japanese Patent Laid Open Publication No. Hei 10-032643, Published Feb. 3, 1998.
Japanese Patent Laid Open Publication No. Hei 06-334680, Published Dec. 2, 1994.
Canadian Application 2,134,132, Published Jul. 7, 1995.
Altmann, J., et al., “INDEX Project: User Support for Buying QoS with Regard to User's Preferences”, IEEE, pp. 101-104, 1998.
Dalgic, I., et al., “True Number Portability and Advanced Call Screening in a SIP-Based IP Telephony System”, IEEE, pp. 2-7, 1999.
Edell, R., et al., “Providing Internet Access: What We Learn from INDEX”, Downloaded from Berkeley University, pp. 1-17, 1999, http://www.INDEX.Berkeley.EDU/reports/99-010W.
Patel, A., et al., “A Technique for Multi-Network Access to Multimedia Messages”, Computer Communications, vol. 20, No. 5, pp. 324-337, 1997.

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