Method of controlling change-over of connection route...

Details Method of controlling change-over of connection route... Method of controlling change-over of connection route...

2007-04-24

2007-04-24

Pham, Brenda (Department: 2616)

Multiplex communications

Pathfinding or routing

C370S401000

Reexamination Certificate

active

09969950

ABSTRACT:
The invention relates to a method of controlling change-over of a connection route between media gateway apparatuses, and a call agent apparatus. During communications, a connection route of deteriorated quality is changed over to a connection route of high quality selected from a plurality of IP networks. Thus, the transmission quality is maintained, and high-quality transmission services are provided at low cost.In a voice/data integrated network having subscribers lines accommodated in STM channel switches LS1and LS2connected to an IP network via media gateway apparatuses MG1and MG2respectively, the media gateway apparatuses MG1and MG2collect/edit real-time packet quality information of IP packets for each call, and post the quality information to a call agent CA. The call agent CA updates packet quality information for each connection route based on the packet quality information, and transmits an instruction, for changing over a connection route of a call at a deteriorated quality level to a connection route of good quality, to the media gateway apparatuses MG1and MG2.

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patent: 6600735 (2003-07-01), Iwama et al.
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patent: 2000209282 (2000-07-01), None
patent: 2000307649 (2000-11-01), None

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