Cloud voice deployment

Microsoft Teams, the hub for teamwork and communications in Office 365, now provides Audio Conferencing and Phone System with Calling Plans capabilities to meet additional business requirements by extending the Teams meeting and calling experience to include external parties connected via the public switched telephone network (PSTN).

We'll update this page as additional cloud voice features for Teams are released over time.

Audio Conferencing in Microsoft Teams

Audio Conferencing in Office 365 allows participants to join your Teams meetings from any telephone.

Here's what you get with Audio Conferencing in Office 365.

Phone System with Calling Plans in Microsoft Teams

Phone System is an Office 365 feature that provides the ability to manage call routing, policies, and user provisioning. This includes phone calling management system, call routing, and call control.

Office 365 Calling Plans is an add-on service for the Phone System feature, delivered through Teams and Skype for Business Online. Calling Plans provide the people in your business with a primary phone number and lets them make and receive phone calls outside of your organization over the PSTN.

To learn more, read Here's what you get with Phone System in Office 365 and What are Calling Plans in Office 365?

Practical guidance for Audio Conferencing and Phone System with Calling Plans in Microsoft Teams

This practical guidance is organized by using the Office 365 FastTrack customer journey framework and its three phases—Envision, Onboard, and Drive Value. It's intended to help you plan, deliver, and operate a successful Audio Conferencing or Phone System with Calling Plans implementation.

Envision Onboard Drive Value
Define my success
Make my service decisions
Evaluate my environment
Plan my service management
Plan my users' experience
Document my success plan
Prepare my service
Prepare my users
Deploy my service



Operate my service
Enhance my service




The content is presented in an ordered fashion, and is designed to take you through an end-to-end deployment journey from start to finish. If you're already actively deploying, we still encourage you to reference the applicable content areas.

Tip

In this practical guidance, we're providing example outputs for each activity and key discussion. The examples throughout this document are enclosed inside Tip callouts, and they serve as a template that you can reuse. You'll see "TBA" (to be added) for information that you need to complete as part of your planning process.