Which configuration change is needed to prevent the calls from dropping?

Refer to the exhibit.

300-080-troubleshooting-cisco-ip-telephony-and-video-ctcollab_img_036

Users are reporting that inbound calls from the PSTN are dropping when not answered within 10 seconds. Calls come in via ISDN T1 PRI. Which configuration change is needed to prevent the calls from dropping?
A. Remove the timeouts wait-release 10 command from under the voice-port.
B. Remove the timeouts initial 10 command from under the voice-port.
C. Remove the timer receive-rtcp 2 command from under the gateway.
D. Remove the timer receive-rtp 10000 command from under the gateway.
E. Modify the Call Forward No Answer setting in CUCM to redirect calls to Voicemail or another extension.

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3 thoughts on “Which configuration change is needed to prevent the calls from dropping?

  1. C is right. Multiply the value of “timer receive-rtcp 2” by the value of the gloabal “ip rtcp report interval” to get the value of the “unanswered call drop timer”, so to speak, in ms.

  2. C is correct.
    The timer receive-rtcp 2 command works in conjunction with the ip rtcp report interval command by multiplying the report interval number by the number added to the end of the receive-rtcp command. In this case 5000 (ms) is multiplied by 2 for 10,000 ms (or 10 seconds).
    “timer receive-rtp” only relates to already-connected calls, will clear/disconnect calls that are paused (no traffic) for longer than this timer.
    The two answer choices listed under the voice-port are not applicable here because they relate to outbound user dialing, not inbound.

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