Refer to exhibit. A customer reports that calls that are made through the PSTN gateway drop after few seconds of being placed on mute.
Which mgcp configuration command can you issue in the gateway to resolve this problem?
A. Mgcp explicit hookstate
B. Mgcp max-waiting-delay
C. No mgcp rtp unreachable timeout
D. No mgcp timer receive-rtcp
The Answer should be D:
The receive-rtcp keyword is the timer used by a gateway to disconnect a VoIP call when IP connectivity is lost with the remote gateway. After receiving each RTP or RTCP packet from the remote gateway, the receiving gateway starts a timer. The period of the timer is determined by multiplying the value configured using the mgcp timer receive-rtcp command with the value configured using ip rtcp report interval command. If the timer expires before the next packet is received from the remote gateway, the receiving gateway disconnects the call and notifies the call agent.