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Exam 350-801 topic 1 question 138 discussion

Actual exam question from Cisco's 350-801
Question #: 138
Topic #: 1
[All 350-801 Questions]


Refer to the exhibit. A call to an international number has failed. Which action corrects this problem?

  • A. Add the bearer-cap speech command to the voice port.
  • B. Strip the leading 011 from the called party number.
  • C. Assign a transcoder to the MRGL of the gateway.
  • D. Add the isdn switch-type primary-dms100 command to the serial interface.
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by remmie_78 at June 15, 2021, 2:53 p.m.

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remmie_78
Highly Voted 2 years ago
Should be Answer B; Bearer-cap 0x8090A2 is already speech. Dialed nr starting 011 seems to me not an international number. Source; https://www.cisco.com/c/en/us/support/docs/voice/h323/14006-h323-isdn-callfailure.html
upvoted 6 times
Collabhunter
2 years ago
yeap, I'm going to B also. From eliminating other answers... bearer-cap as speech is already there as you said (0x8090A2)... no need for transcoder or changing switch-type as we got "normal call clearing" on disconnect cause, So probably we got "wrong number dialer from ITSP", then removing 011 will do the work to correct digits to pstn
upvoted 2 times
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timmyz
1 year, 10 months ago
011 is the US international dial code. so that has to be ther to place the call even with the ITSP
upvoted 1 times
timmyz
1 year, 10 months ago
og but wait the ISDN PLAN is international so the leading 011 is not needed?
upvoted 1 times
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VG224
1 year, 9 months ago
Not really .. specially in this case when ISDN call type is set to International
upvoted 1 times
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DaKenjee
Most Recent 7 months, 2 weeks ago
Selected Answer: B
From answers i would ignore A,C,D A is not suiting, is already speach: 0x8090A2 Speech https://www.cisco.com/c/en/us/support/docs/voice/h323/14006-h323-isdn-callfailure.html C is not required, IDSN Debug is not showing codec issues on given cause codes D is about Configuring the Switch Type, which i do not see as an issue, when focusing on given cause codes suspecious is 0x929F, which indicates issues in other related searches to signaled called number I checked on our customer in USA, we send it with leading 011 + plan:unknown I assume it is provider depending, but with plan:international it might be necessary stripping 011
upvoted 2 times
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Sal007
8 months ago
Selected Answer: B
B is the correct answer.
upvoted 2 times
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Sal007
8 months ago
Selected Answer: B
The answer is B
upvoted 1 times
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nuno_paulo
1 year, 6 months ago
Selected Answer: B
A quick debug isdn q931 helps determine the issue: A normal call will have: Bearer Capability i = 0x8090A2 A failed call wil have the following: Bearer Capability i = 0x8890 https://it-learn.io/2014/05/01/sip-devices-unable-to-stablish-pstn-calls/
upvoted 2 times
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BhaiKyare
1 year, 11 months ago
If 011 is sent out we should get fast busy right ? Then why the question is not mentioning that but just say the call is failed ? So Answer A could be right
upvoted 2 times
VG224
1 year, 9 months ago
Its B . You do not need 011 in front when call type is set to International
upvoted 1 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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