At what point does the MGCP call agent turn over to the residential gateways the setup of the call path?
A.
After the call agent has been notified that an event has occurred at the source residential gateway.
B.
After the call agent has been notified of an event and has instructed the source residential gateway to create a connection.
C.
The call agent is never out of the call path setup.
D.
After the call agent has sent a connection requests to both the source and destination and has relayed a modify-connection request to the source so that the source and destination can set up the call path.
E.
After the call agent has forwarded session description protocol information to the destination from the source and has sent a modify connection to the destination and a create-connection request to the source.