Congestion-responsive VoIP system and congestion avoidance...

Details Congestion-responsive VoIP system and congestion avoidance... Congestion-responsive VoIP system and congestion avoidance...

2006-02-14

2006-02-14

Pham, Brenda (Department: 2664)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S229000

Reexamination Certificate

active

06999451

ABSTRACT:
A congestion-responsive VoIP system according to the present invention can minimize an increase in transmission traffic by simplifying the transmission of congestion data and avoid the degradation of speech quality by avoiding congestion proactively, by enabling a repeater in an IP network connecting a plurality of terminals to add congestion data a 1 or a 0 to speech packets to be transmitted to the terminals; the terminals to receive speech packets with congestion data and detect a congestion condition based on the congestion data; and a call set-up part to determine selectively a coding method according to the congestion condition.

REFERENCES:
patent: 6611694 (2003-08-01), Oltedal et al.
patent: 2002/0018465 (2002-02-01), Rosenberg
patent: 4-252536 (1992-09-01), None
patent: 2000-196599 (2000-07-01), None
patent: 2002-94514 (2002-03-01), None

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