The current operational state of the gateway.
up (1) - ready to communicate with MGC
down (2)
testing(3) - in some test mode
unknown(4) - status can not be determined for some
reason.
The testing(3) state indicates that no signaling packets
can be passed.
If cmedGatewayAdminStatus is down(2) then
cmedGatewayOperStatus should be down(2).
If cmedGatewayAdminStatus is changed to up(1) then
cmedGatewayOperStatus should change to up(1) if the
gateway is ready to transmit and receive signaling
traffic; it should remain in the down(2) state if and
only if there is a fault that prevents it from going to
the up(1) state