CCVP^™ Challenge Question

Which command enters SRST configuration mode on a Cisco IOS Gateway?

Explanation

call-manager-fallback is executed in global router configuration mode. This will enter the router into SRST configuration mode.

The remaining choices are invalid commands.

During a WAN connection failure, when SRS Telephony is enabled, Cisco IP phones display a message informing you that they are operating in CallManager fallback mode. The Cisco IP Phone 7960 and Cisco IP Phone 7940 display a "CM Fallback Service Operating" message and the Cisco IP Phone 7910 displays a "CM Fallback Service" message when operating in CallManager fallback mode. When the CallManager is restored, the message goes away and full Cisco IP phone functionality is restored.

While in SRST fallback mode, the IP phones periodically attempt to reestablish a connection with the CallManager. When the WAN connection is restored, the IP phones automatically cancel their registration with the SRST router. A Cisco IP phone cannot reestablish a connection with the primary CallManager if it's currently engaged in an active call.

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