Question
You have a Microsoft Teams Phone deployment that contains a Session Border Controller (SBC) named SBC1.contoso.com.
Direct Routing integrates with a PBX phone system that uses only four-digit dialing and is configured to use the SBC.
Teams is configured to use dial plans that normalize any four-digit calls to E.164.
You have the following translation rule.
```
Identity: rule1
Name: rule1
Pattern: ^\+1(\d{10});ext=(\d{4})$
Translation: $2
```
You need to ensure that calls to the legacy PBX pass only a four-digit extension.
How should you complete the PowerShell command? To answer, select the appropriate options in the answer area.
```PowerShell
[Dropdown 1] -Identity SBC1.contoso.com [Dropdown 2] "rule1"
```
Explanation
Dropdown 1: Number translation rules are assigned to the SBC's configuration in Teams, which is the online PSTN gateway object, so you use Set-CsOnlinePSTNGateway. The hybrid PSTN site and appliance cmdlets belong to Skype for Business hybrid scenarios, and Set-CsOnlinePSTNUsage only manages PSTN usage records for voice routing. Dropdown 2: Calls from Teams users to the PBX are outbound calls, and the called number that the SBC receives is changed by OutboundPstnNumberTranslationRules, which turns the dial-plan normalized E.164 number into the four-digit extension captured by $2. The Inbound parameters apply to calls coming from the SBC into Teams, and OutboundTeamsNumberTranslationRules changes the calling (From) number of the Teams user rather than the called number.
