Teams Conference Phone License with PSTN and One-Touch Join

MS-700 By islever Editorial Last updated

Manage phone numbers and services for Teams Phone Manage Teams clients and devices

Short answer

B Assign a Microsoft Teams Shared Device license to each conference phone for PSTN calling and one-touch meeting join.

Question

You have a Microsoft 365 E5 subscription that uses Teams with Operator Connect. You plan to deploy Teams conference phones that support PSTN calls and one-touch join for Teams calendar meetings. Which license should you assign to each conference phone?
  1. Microsoft 365 E5
  2. Microsoft Teams Shared Device Correct Answer
  3. Microsoft 365 Business Standard
  4. Microsoft 365 E3
  5. Teams Rooms Pro

Key Takeaways

This question tests the licensing distinction between shared Teams phones and dedicated Teams Rooms systems; the common trap is assuming that one-touch join or PSTN calling implies a Teams Rooms Pro license.

Teams conference phones that support PSTN calls and one-touch join require a Microsoft Teams Shared Device license, not a user license like Microsoft 365 E5. This page establishes that the correct answer is B, contrasting it with the often-confused Teams Rooms Pro license.

Common mistake: The most common wrong answer is Teams Rooms Pro (E), chosen because it also includes Teams Phone and meeting join, but that license applies to meeting room systems, not conference phones.

Expert Analysis

Why the Answer Is Correct

The device in question is a Microsoft Teams conference phone, which belongs to the Teams phones device category. Microsoft licensing guidance requires a Microsoft Teams Shared Devices license for Teams phones, including conference phones, to enable PSTN calling through Operator Connect and one-touch join for Teams calendar meetings. This license is assigned to a resource account for the shared device, not to a user, and it includes the necessary Teams Phone capabilities. Therefore, option B is the correct license.

Why the Other Options Are Wrong

Options A, C, and D are all user-based licenses (Microsoft 365 E5, Business Standard, E3) and cannot be assigned to a shared device like a conference phone. Option E, Teams Rooms Pro, is designed for dedicated Microsoft Teams Rooms systems (Windows or Android) that include a compute unit and touch console, not for standalone conference phones. While Teams Rooms Pro also includes Teams Phone and meeting join, it is scoped to meeting room devices, making it the wrong choice for this scenario.

Community Comment Notes

The community votes overwhelmingly favored option E, with comments like "teams room pro is the correct answer" from kaycee_a reflecting a common misconception. HOzwei linked to a Tech Community blog on deploying Teams phone devices, but that blog actually supports the Shared Device license for phones. Aboed mentioned that an "audio-conferencing device in a small meeting room" needs Teams Rooms Pro, but that describes a Teams Rooms system, not a standalone conference phone. These comments highlight the importance of distinguishing device categories when choosing licenses.

Official Reference

https://learn.microsoft.com/en-us/microsoftteams/rooms/rooms-licensing

This link opens the official vendor documentation in a new tab.

Exam Strategy

When you see 'conference phone,' think 'Teams phone' and choose Microsoft Teams Shared Device. If the scenario says 'Teams Rooms' or 'meeting room system,' then Teams Rooms Pro is the correct license.

Frequently Asked Questions

Why is Teams Rooms Pro not the right license for a conference phone?

Teams Rooms Pro is for dedicated Microsoft Teams Rooms systems, not for standalone Teams conference phones, which require a Microsoft Teams Shared Device license.

Can I assign a Microsoft 365 E5 license to a conference phone?

No, Microsoft 365 E5 is a user license and cannot be assigned to a shared device; use a Microsoft Teams Shared Device license instead.

More MS-700 FAQ →

Community Votes

E
100%

100% of anonymous learners picked answer E. Votes are pick records left by other test-takers — they are not the verified answer.

Discussion 4 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 4

  1. HOzwei 👍 4 Answered E
    I think the answer is "E" https://techcommunity.microsoft.com/t5/microsoft-teams-blog/how-to-deploy-teams-phone-devices/ba-p/3994979
  2. Aboed 👍 1
    Teams Rooms Pro license: If you are using the audio-conferencing device in a small meeting room, you will need a Teams Rooms Pro license that will allow you to join audio meetings with one touch.
  3. MastrM 👍 1
    You have a Microsoft 365 E5 subscription that uses Teams with Operator Connect. Why will the correct answer be the same as the question?
  4. kaycee_a 👍 1 Answered E
    teams room pro is the correct answer

Reader comments & corrections

No reader corrections yet — spotted an error or have a note? Share it below.

Log in to comment, report an error, or add a note about this question.

How to Diagnose Teams Guest Invitation Failure?

S-grade

Which Teams Role Enables Reading Activity Reports with Least Privilege?

S-grade

Retain Teams Chats and Channel Files for One Year: What First?

S-grade

Teams Device Remote Restart Permissions

S-grade

Practice All MS-700 Questions

Access 88 questions with complete answers and detailed explanations.

View Full MS-700 Practice Test →

← Back to MS-700 Study Guide