System and method for IP telephony ping

Details System and method for IP telephony ping System and method for IP telephony ping

2005-09-06

2005-09-06

Kizou, Hassan (Department: 2662)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S401000

Reexamination Certificate

active

06940849

ABSTRACT:
The present invention provides a system and method for establishing the availability of a node to received a voice over internet protocol (VoIP) call. The present invention comprises attempting to establish a VoIP call to a given node that is the target of the VoIP call, determining whether the attempt to establish the VoIP call is successful; and generating an alarm in response to a call failure. According to embodiments of the invention, the method may comprise extracting call metrics from a VoIP call that provide information regarding the quality of a VoIP connection and generating an alarm in response to the call metrics falling below a threshold.

REFERENCES:
patent: 6298045 (2001-10-01), Pang et al.
patent: 6563816 (2003-05-01), Nodoushani et al.
patent: 6584110 (2003-06-01), Mizuta et al.
patent: 6697475 (2004-02-01), MeLampy et al.
patent: 6757823 (2004-06-01), Rao et al.

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