Refer to exhibit.
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mgcp
mgcp call-agent 172.16.240.124 2427 service-type mgcp version 0.1
ccm-manager
mgcp dtmf-relay voip codec all mode out-of-band
mgcp rtp unreachable timeout 1000 action notify
mgcp modem passthrough voip mode cisco
mgcp sdp simple
mgcp package-capability rtp-package
mgcp package-capability sst-package
mgcp timer receive-rtcp 10
no mgcp explicit hookstate
isdn switch-type primary-pi
call rsvp-sync
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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?