You administer an Office 365 deployment.

You need to ensure that users can dial telephone numbe

rs by using either the Skype for Business app for Windows or the Skype for Business mobile app.

What should you do?

A. In the Office 365 Admin center, enable Skype for Business PSTN Calling.

B. Run the Windows PowerShell cmdlet

Enable-CsOnlineDialInConferencingUser

.

C. In the Office 365 Admin center, enable Skype Meeting Broadcast.

D. Run the Windows PowerShell cmdlet

Set-CsUser

.

E. In the Office 365 Admin center, enable SkypeCloud PBX.

Explanation:

Explanation:

Phone

System in Office 365 (Cloud PBX) is Microsofts technology for enabling call control and PBX capabilities in the Office 365 cloud with Skype for Business Online. Phone System allows you to replace your existing PBX system with a set of features delivered f

rom Office 365 and tightly integrated into the companys cloud productivity experience.

Note: To enable calls to landlines and mobile phones, Phone System can be connected to the PSTN in one of two ways:

* By purchasing Calling Plan-”the PSTN calling plan

add-on to Office 365.

* By using on-premises PSTN connectivity, where software on-premises connects with your existing telephony infrastructure.

References:

You administer an Office 365 deployment.

You need to ensure that users can dial telephone numbers by using either the Skype for Bu

siness app for Windows or the Skype for Business mobile app.

What should you do?

A. Run the Windows PowerShell cmdlet

Set-CsOnlineVoiceUser

.

B. In the Office 365 Admin center, enable Skype for Business PSTN Conferencing.

C. In the Office 365 Admin center

, enable Skype Meeting Broadcast.

D. In the Office 365 Admin center, enable Skype Cloud PBX.

Explanation:

Phone System in Office 365 (Cloud PBX) is Microsofts technology for enabling call control and PBX capabilities in the Office 365 cloud wit

h Skype for Business Online. Phone System allows you to replace your existing PBX system with a set of features delivered from Office 365 and tightly integrated into the companys cloud productivity experience.

Note: To enable calls to landlines and mobil

e phones, Phone System can be connected to the PSTN in one of two ways:

By purchasing Calling Plan-”the PSTN calling plan add-on to Office 365.

By using on-premises PSTN connectivity, where software on-premises connects with your existing telephony infrastr

ucture.

References: https://docs.microsoft.com/en-us/skypeforbusiness/skype-for-business-hybrid-solutions/plan-your-phone-system-cloud-pbx-solution/plan-your-phone-system-cloud-pbx-solution