Method and apparatus for connecting communication device via...

Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching

Reexamination Certificate

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Details

C370S395210, C370S395610

Reexamination Certificate

active

06914900

ABSTRACT:
Disclosed is a method of connecting a telephone via an IP network. An exchange on the originating side (1) evaluates voice quality along a route through the IP network to an exchange on a terminating side when a call originate request has been issued to connect the originating telephone via the IP network, (2) connects the originating telephone to the terminating telephone via the above-mentioned route if the voice quality is good, and (3) if the voice quality is bad, controls a connection of the telephone in accordance with a command from the caller or by selecting another route automatically such as an alternative route through the IP network or another route through a network other than the IP network.

REFERENCES:
patent: 6253249 (2001-06-01), Belzile
patent: 6370120 (2002-04-01), Hardy
patent: 6466548 (2002-10-01), Fitzgerald
patent: 6512761 (2003-01-01), Schuster et al.
patent: 6584110 (2003-06-01), Mizuta et al.
patent: 6600735 (2003-07-01), Iwama et al.
patent: 2003/0198218 (2003-10-01), Farris et al.
patent: 57-145456 (1982-09-01), None

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