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Exam MS-720 topic 3 question 3 discussion

Actual exam question from Microsoft's MS-720
Question #: 3
Topic #: 3
[All MS-720 Questions]

HOTSPOT -
You have a Microsoft Teams Phone deployment. Direct Routing is enabled for all users. The users can place and receive PSTN calls.
You are implementing emergency numbers in Teams.
You need to remove the + symbol from any three-digit calls to the Session Border Controller (SBC).
How should you complete the PowerShell script? To answer, drag the appropriate values to the correct targets. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
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Suggested Answer:
Reference:
https://docs.microsoft.com/en-us/powershell/module/skype/new-csteamstranslationrule?view=skype-ps https://docs.microsoft.com/en-us/microsoftteams/direct-routing-translate-numbers
by uiui at Dec. 19, 2021, 7:33 a.m.

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Iamrandom
Highly Voted 3 years, 4 months ago
For those in the other comments asking: the -OutboundTeamsNumberTranslationRules is the calling (i.e. Teams client) number of a call going to PSTN. Therefore naming convention is: *OUTBOUND CALLS* (Teams > PSTN) OutboundTeamsNumberTranslationRules = calling number OutboundPSNTNumberTranslationRules = called number *INBOUND CALLS* (PSTN > Teams) InboundPSTNNumberTranslationRules = calling number InboundTeamsNumberTranslationRules = called number This shows how dumb Microsoft is, it's overcomplicating stuff just for the sake of not using standard and established names in VoIP, they have to come up with their random stuff... In the end is: New-CsTeamsTranslationRule Set-CsOnlinePSTNGateway OutboundPstnNumberTranslationRules
upvoted 26 times
piernaizquierda
2 years, 4 months ago
But the SBC is in the middle and it handles its also the calls so it would be Teams-->SBC-->PSTN then it is Outbound-->Inbound-->Outbound
upvoted 1 times
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uiui
Highly Voted 3 years, 6 months ago
Set-CSOnlinePSTNGateway -OutboundTeamsNumberTranslationRules https://docs.microsoft.com/en-us/microsoftteams/direct-routing-translate-numbers
upvoted 9 times
igidxv
3 years, 6 months ago
You dont want to modify the Teams number, but PSTN number, so its either Inbound or OutBoundPSTN. Me, i would choose OutboundPSTN The question is poorly phrased, i would think we want to modify a scenario such as: from Teams: +112 --> Apply OutboundPSTN --> Arrives to SBC as 112. However, the revealed solution suggests that call flow is this, which is not really a real world scenario Emergency provider calls - SBC(i would apply whatever rules necessary here already and dont use the PSTN rule)- INBOUNDPSTNRule applies and removes + and the call arrives as 112 to the Teams client. So i think OUTBOUNDPSTNNumbertranslationRules is the correct here.
upvoted 6 times
ivilalta
3 years, 5 months ago
Agree with OUTBOUNDPSTNNumbertranslationRules as the correct answer
upvoted 4 times
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piernaizquierda
2 years, 4 months ago
It is inbound for the SBC... It is an outbound call from Teams but the it is coming into the SBC, so.... and then it goes out to the PSTN... Outbound--> Inbound --> Outbound...
upvoted 1 times
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umair1297
Most Recent 2 years, 4 months ago
on exam 15-02-2023
upvoted 1 times
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piernaizquierda
2 years, 5 months ago
The answer is correct. It is and outbound call for the user and for teams but it will be an inbound call for the SBC, simply is the way that it works.
upvoted 1 times
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Mlt1865
2 years, 6 months ago
-Identity should be "sbc1.contoso.com"
upvoted 2 times
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tester18128075
3 years, 1 month ago
New-CsTeamsTranslationRule Set-CsOnlinePSTNGateway OutboundPstnNumberTranslationRules
upvoted 1 times
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Rickg
3 years, 2 months ago
New-CsTeamsTranslationRule Set-CsOnlinePSTNGateway OutboundPstnNumberTranslationRules As per Iamrandom
upvoted 1 times
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Shashank1320
3 years, 3 months ago
2nd answer should be Set-CsOnlinePSTNGateway -identity Name -OutboundPstnNumberTranslationRules
upvoted 1 times
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ViSr
3 years, 4 months ago
I too will go with Set-CSOnlinePSTNGateway -OutboundPSTNNumberTranslationRules
upvoted 1 times
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covid_9
3 years, 6 months ago
Crap you both agree on the Outbound part but witch PSTN/Teams .. From the question it says 3 digit calls To SBC must me Outbound. As all inbound 3 digit calls to SBC will fail. Since this is emergency number we are talking about PSTN .. So I agree it is OutboundPSTNNumber
upvoted 1 times
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