Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2006-02-21
2006-02-21
Hsu, Alpus H. (Department: 2665)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S356000, C370S395210, C370S395410, C370S395430, C370S395640, C379S088170
Reexamination Certificate
active
07002919
ABSTRACT:
A method and system are disclosed for providing voice communication over a packetized network in which quality of service is guaranteed for voice communications. The method involves identifying reserved paths within the network, such as multi-protocol label switching paths. When a call is made, the identified reserved paths are evaluated to determine whether each contains sufficient bandwidth for the requested voice communication. The effective bandwidth for the call is estimated based on the codec used for the call, the service class parameter set from the caller's user profile, the time of day, and other parameters. A priority parameter is set for the requested voice communication, which may be based on the service class parameter, and is mapped to a specific Differentiated Service Code Point (DSCP) and 802.1p service class parameter. If the reserved path is determined to contain sufficient bandwidth, the requested voice communication is transmitted over the reserved path at the set priority. If the path does not contain sufficient bandwidth, an error message is sent to inform the caller that QoS can not be guaranteed for the call, and a decision is made whether the call should proceed nevertheless.
REFERENCES:
patent: 5392344 (1995-02-01), Ash et al.
patent: 5519689 (1996-05-01), Kim
patent: 5781624 (1998-07-01), Mitra et al.
patent: 6092113 (2000-07-01), Maeshima
patent: 6434624 (2002-08-01), Gai et al.
patent: 6574195 (2003-06-01), Roberts
patent: 6584110 (2003-06-01), Mizuta et al.
patent: 6590867 (2003-07-01), Ash et al.
patent: 6614781 (2003-09-01), Elliott et al.
patent: 6724722 (2004-04-01), Wang et al.
patent: 6778494 (2004-08-01), Mauger
patent: 6778535 (2004-08-01), Ash et al.
patent: 6801502 (2004-10-01), Rexford et al.
Hsu Alpus H.
Lucent Technologies - Inc.
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