Refer to the exhibit. Horst’s Helicopters has a centralized Cisco Unified Communications Manager develoyment, with SRST implemented on MGCP gateways at the remotes sites. The WAN link to Seattle has failed. All phones in Seattle have registered to the SRST gateway and can call each other internally, but all outside calls fail. Based on the output shown in the exhibit, what is the most likely solution to the problem?
A.
Configure MCGP fallback on the gateway.
B.
Add the isdn outgoing-voice command to the configuration.
C.
Call the phone provider and report that the PRI link is down.
D.
Enable the outgoing POTS dial peer with the no shutdown command.