Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2005-02-01
2005-02-01
Chin, Wellington (Department: 2664)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S352000, C370S401000
Reexamination Certificate
active
06850525
ABSTRACT:
Packet delivery statistics are derived from a User Datagram Protocol (UDP) stream simulating a service level provided by a Voice over Internet Protocol (VoIP) network and transmitted across the VoIP network at a first pre-defined interval. The derived packet delivery statistics are processed at a second pre-defined interval to generate network performance statistics for the VoIP network, where the second pre-defined interval is substantially larger than the first pre-defined interval.
REFERENCES:
patent: 20020015387 (2002-02-01), Houh
patent: 20020051464 (2002-05-01), Sin et al.
patent: 20020141389 (2002-10-01), Fangman et al.
patent: 20020141392 (2002-10-01), Tezuka et al.
Chang Sujin Catherine
Mitsumori Derek Hisami
Pan Kwang-Shan
Chin Wellington
Faegre & Benson LLP
Jain Raj
Level 3 Communications, Inc.
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