This is just a thought, but I wouldn’t be surprised to see the proctor try to “pull a fast one” by shutting down VoIP services on an H.323 gateway. I suppose this could be easily identified by executing a “show gateway” or “show run.” I came across this while reading the Cisco IOS H.323 Configuration Guide.
Shutting Down and Enabling VoIP Service
To shut down or enable all VoIP services on a Cisco gateway:
voice service voip
(no) shutdown forced
exit
The following example displays output after the gateway has been shut down:
Router# show gateway
H.323 ITU-T Version: 4.0 H323 Stack Version: 0.1
H.323 service is shutdown
Gateway Router is not registered to any gatekeeper
Shutting Down and Enabling VoIP Submodes
To shut down or enable VoIP submodes on a Cisco gateway:
voice service voip
h323
(no) call service stop maintain-registration
exit
The following example displays output when H.323 call service has been shut down with the call service stop maintain-registration command:
Router# show gateway
H.323 ITU-T Version: 4.0 H323 Stack Version: 0.1
H.323 service is shutdown
Gateway Router is registered to Gatekeeper GK1