MS-721: How to Disable Voicemail for Microsoft 365 Group in Teams Phone Deployment?

Learn the correct method to disable voicemail for a Microsoft 365 group in Microsoft Teams Phone using calling policies. Expert guide for MS-721 certification exam preparation.

Question

You have a Microsoft Teams Phone deployment.

You have a Microsoft 365 group named Consultants.

You need to disable voicemail for the Consultants group.

What should you do?

Select only one answer.

A. Create a new calling policy and assign it to each member of the Consultants group.
B. Create a new voicemail policy and assign it to each member of the Consultants group.
C. Modify the global (Org-wide default) calling policy.
D. Modify the global (Org-wide default) voicemail policy.

Answer

To disable voicemail for the Consultants group in a Microsoft Teams Phone deployment, follow this solution:

A. Create a new calling policy and assign it to each member of the Consultants group.

Explanation

Calling policies are how one enables or disables voicemail functionality for users in an organization. Voicemail policies control the features of voicemail but are not directly used to enable voicemail. You must create a new calling policy, and then assign it to the Consultants group. If you modify global (Org-wide default), it will affect all users in the tenant.

Voicemail availability for inbound calls is controlled via Teams calling policies, not voicemail policies. Calling policies include the critical setting “Voicemail is available for routing inbound calls”, which determines whether calls can be forwarded to voicemail.

Why Not Voicemail Policies (Options B/D)?

Voicemail policies govern features like transcription, prompt languages, or profanity masking—not the ability to route calls to voicemail. Disabling voicemail entirely requires modifying the calling policy.

Avoid Modifying the Global Policy (Option C)

The global (Org-wide default) calling policy applies to all users unless overridden. Changing it would disable voicemail for everyone, not just the Consultants group.

Steps to Implement Option A

1. Create a custom calling policy in the Teams admin center (Voice > Calling policies).
2. Set “Voicemail is available for routing inbound calls” to Disabled.
3. Assign this policy to members of the Consultants group via direct user assignment or group policy assignment.

This approach ensures only the Consultants group loses voicemail access, while other users retain existing settings.

Validation from Microsoft Documentation

• The AllowVoicemail parameter in PowerShell (Set-CsTeamsCallingPolicy) or the Teams admin center directly controls voicemail routing.
• Voicemail policies (CsOnlineVoicemailPolicy) do not include settings to disable voicemail entirely.

By creating and assigning a custom calling policy, you achieve targeted voicemail disablement without impacting other users.

Microsoft 365 Certified Collaboration Communications Systems Engineer Associate MS-721 certification exam assessment practice question and answer (Q&A) dump including multiple choice questions (MCQ) and objective type questions, with detail explanation and reference available free, helpful to pass the Microsoft Collaboration Communications Systems Engineer MS-721 exam and earn Microsoft 365 Certified Collaboration Communications Systems Engineer Associate certification.