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Exam 300-815 topic 1 question 149 discussion

Actual exam question from Cisco's 300-815
Question #: 149
Topic #: 1
[All 300-815 Questions]



Refer to the exhibit. A collaboration engineer is troubleshooting an issue where external callers cannot leave voicemail messages. Also, internal users report hearing the reorder tone (fast busy) when they attempt to retrieve voicemail messages from their Cisco IP phones. Which action resolves the issue?

  • A. Verify that the correct port numbers are used for the SIP trunk.
  • B. Ensure that the SIP Trunk Security Profile is configured to use UDP for transport.
  • C. Start the Cisco Call Manager service at the destination.
  • D. Ensure that Cisco UCM can resolve the destination address via DNS.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
by abc010 at April 16, 2023, 10:18 p.m.

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Piji
3 months, 1 week ago
Selected Answer: D
The correct answer is D. If you look at the exhibit the "Destination Address in an SRV" selected. Then the port number will be identified from SRV record, so selecting 0 is fine.
upvoted 1 times
Piji
3 months, 1 week ago
https://www.cisco.com/c/en/us/support/docs/unified-communications/unified-communications-manager-im-presence-service/118590-config-cucm-00.html
upvoted 1 times
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729edae
6 months, 2 weeks ago
Selected Answer: D
I vote D. John Doe is correct in their assessment.
upvoted 1 times
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rsl4u
9 months, 2 weeks ago
To support John_Doe_9999's answer, I found this URL: https://www.cisco.com/c/en/us/support/docs/unified-communications/unified-communications-manager-callmanager/213718-calls-through-session-initiation-protoco.html In this document under the section Troubleshoot you find: Scenario 3. For Local=3, possible reason could be DNS server is not reachable or DNS is not properly configured to resolve hostname or SRV which is configured on local SIP trunk
upvoted 2 times
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dirkske78
9 months, 2 weeks ago
Selected Answer: D
Local=3 (DNS query failed)
upvoted 1 times
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FrankPic
9 months, 3 weeks ago
The Status Reason codes are provided below: Local=1 (request timeout) Local=2 (local SIP stack is not able to create a socket connection with the remote peer) Local=3 (DNS query failed) These error codes can be found in the following System Error Messages Guide for UC_CALLMANAGER-3-SIPTrunkOOS alarm. Ref: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/err_msgs/8_x/ccmalarms861.html#UC_CALLMANAGER-5-SIPNormalizationAutoResetDisabled D is correct
upvoted 2 times
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john_doe_9999
10 months, 3 weeks ago
Selected Answer: D
I'm going with D because if you can't even resolve the hostname, the port doesn't matter. I'm thinking that's why the make it 0 just to make it tricky. You have to think of order of operations.
upvoted 1 times
john_doe_9999
10 months, 3 weeks ago
I also confirmed you can indeed use "0" for your destination port on a SIP trunk.
upvoted 1 times
john_doe_9999
10 months, 2 weeks ago
To add to this further, the down reason of "local=3" means the DN Query Failed, so D is correct for sure
upvoted 1 times
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abc010
1 year, 7 months ago
Selected Answer: A
Should be A?
upvoted 2 times
Piji
3 months, 1 week ago
The SRV ticked on exhibit, and that is normal to have port 0 as port will be restored from SRV record.
upvoted 1 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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