| 摘要 |
An apparatus causes alternate connection of a telephone call directed to an IP network if the quality of service provided by the IP network is less than a predetermined threshold. A network monitor measures a transmission rating factor for the IP network. A comparator, coupled to the network monitor, compares a desired transmission rating factor to the measured transmission rating factor for the IP network. An IP network interface, coupled to the comparator, an originating system, and the IP network, receives the telephon e call for a dialed number from the originating system. The IP network interfa ce causes the originating system to connect the telephone call through a first network if the measured transmission rating factor for the IP network is les s than the desired transmission rating factor, and connects the telephone call through the IP network otherwise.
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