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Exam 300-815 topic 1 question 63 discussion

Actual exam question from Cisco's 300-815
Question #: 63
Topic #: 1
[All 300-815 Questions]



Refer to the exhibit. An engineer is troubleshooting an issue where inbound calls are failing after they are transferred. The provider reports that UPDATE is not supported, and this is causing the calls to fail. Which command should resolve this issue?

  • A. no midcall-signaling passthru
  • B. no update-callerid
  • C. no contact-passing
  • D. rel1xx require “100rel”
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Suggested Answer: A 🗳️
by MaxG at Aug. 17, 2023, 2:47 p.m.

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decdca7
1 month, 3 weeks ago
Selected Answer: A
no update-callerid – This command disables caller ID updates mid-call, but the issue is with the unsupported UPDATE method, not caller ID updates.
upvoted 1 times
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Piji
2 months, 3 weeks ago
Selected Answer: A
The SIP UPDATE method is used to modify session parameters during an ongoing call without affecting the media. Some providers do not support the SIP UPDATE method, which can cause call failures. The "no midcall-signaling passthru" command ensures that mid-call signaling (such as UPDATE) is not passed through, preventing unsupported UPDATE messages from being sent to the provider.
upvoted 2 times
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b3532e4
3 months, 3 weeks ago
Selected Answer: A
no midcall-signaling passthru and Session Refresh Method change to INVITE Totally, this Q is freaky
upvoted 2 times
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b3532e4
7 months ago
Actually is A
upvoted 2 times
b3532e4
6 months ago
sorry B
upvoted 1 times
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blude
1 year, 6 months ago
Actually is B
upvoted 1 times
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blude
1 year, 6 months ago
Tha document show the answer is D
upvoted 1 times
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MaxG
1 year, 8 months ago
Selected Answer: B
If no update-callerid command is enabled and UPDATE request contains only caller-ID changes, then re-negotiation does not happen for any early dialog caller-ID changes. If UPDATE request contains transcoder changes or video escalation or de-escalation, re-negotiation happens even if no update-callerid command is enabled. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/cube/configuration/cube-book/voi-cube-edupdate-block.html
upvoted 1 times
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