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AssigneeFujitsu Limited
InventorsMasami Ohta, Seiji Tokunaga
Estimating the term…
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 LS1 and LS2 connected to an IP network via media gateway apparatuses MG1 and MG2 respectively, the media gateway apparatuses MG1 and MG2 collect/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 MG1 and MG2.
A method of controlling change-over of a connection route between media gateway apparatuses, based on a sound/data integrated network that connects subscriber lines accommodated in a telephone network to an Internet protocol communication network via media gateway apparatuses, and that connects a media gateway apparatus at a call originating subscriber's line side to a media gateway apparatus at a call terminating subscriber's line side via the Internet protocol communication network, the change-over control method comprising:
A media gateway apparatus that connects a subscriber's line accommodated in a telephone network to an Internet protocol communication network, and connects an originating/terminating call of the subscriber's line through a connection route via the Internet protocol communication network according to an instruction from a call agent, the media gateway apparatus comprising:
A call agent apparatus that transmits an instruction for connecting originating/terminating calls of subscriber's lines through a connection route via an Internet protocol communication network, to media gateway apparatuses that connect the subscriber's lines accommodated in a telephone network to the Internet protocol communication network, the call agent apparatus comprising:
Dependencies are inferred from the claim text.