Telephone system and exchange apparatus therefor

Details Telephone system and exchange apparatus therefor Telephone system and exchange apparatus therefor

H - Electricity

04

M

H04M 3/00 (2006.01) H04L 12/66 (2006.01) H04M 3/08 (2006.01)

Patent

CA 2638056

According to one embodiment, there is provided a telephone system comprises an exchange apparatus to be connected to a best-effort type network and a telephone terminal to be connected to the exchange apparatus. The exchange apparatus includes a first interface unit which is connected to the best-effort type network, a second interface unit which forms a communication route differing from the first interface unit, a detection unit which detects deterioration in a quality of service of a call during establishment between the telephone terminal and its partner via the first interface unit and the best-effort type network, and a call moving unit which moves the call to a communication route passing through the second interface unit when the deterioration is detected.

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