| 摘要 |
A gateway includes a transceiver operable to transmit and receive communications to a fixed communication device, and a processor cooperatively operable with the transceiver. The processor is configured to facilitate during a non-alerting mode: detecting when a fixed communication device attempts to connect via the transceiver to a voice over packet (VOP) network service which is temporarily unavailable, and then switching to an alerting mode. Also, the processor is configured for, during the alerting mode: monitoring an availability of voice over packet (VOP) network service; when the VOP network service becomes available, causing the fixed communication device to provide an audible alert via the transceiver and switching to the non-alerting mode.
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