1. Video Conferencing, Meetings, Calling Microsoft Teams
  2. Microsoft Teams Conference Call Number
  3. Microsoft Teams Conference In Progress Sign
  4. Microsoft Teams Conference Pin
  5. Microsoft Teams Conference Room

Microsoft Teams includes the audio conferencing feature for just this situation! People can call in to Teams meetings using a phone, instead of using the Teams app on a mobile device or PC. You only need to set up Audio Conferencing for people who plan to schedule or lead meetings. Teams devices from certified partners help you get the most out of your Microsoft Teams experience. Teams devices from certified partners help you get the most out of your Microsoft Teams experience. Skip to main content. The world is your conference room. Bose Noise Cancelling Headphones 700 UC equip you for better collaboration in the.

The Open Preview of On-network Conferencing is available to all customers. On-network Conferencing allows organizations to send inbound and outbound Audio Conferencing calls to Microsoft dial-in numbers through Direct Routing. This capability is not intended to extend the support of Audio Conferencing to third party dial-in numbers. On-network Conferencing is not supported if it is used to route inbound calls to the Audio Conferencing service through third party dial-in phone numbers or outbound calls to the PSTN from Microsoft Audio Conferencing Bridge.

Advisor for Teams (preview) walks you through your Teams rollout, including meetings and conferencing. It assesses your Office 365 environment and identifies the most common configurations that you may need to update or modify before you can successfully roll out meetings and conferencing in Teams. Join Teams meetings anytime, anywhere, from any device. Teams meetings are best when you join them from the Teams app or Teams on the web, and there's a bunch of ways to do that—read on for details about joining by link, from your calendar, and more. If you can't use the app or the web, some meetings let you call in using a phone number.

This article describes the prerequisites and configuration steps required to enable On-network Conferencing for your organization.


On-network Conferencing must NOT be deployed with any telephony equipment in India.


Before configuring On-network Conferencing, make sure your organization meets the following prerequisites:

  • Ensure that all users in your organization who are enabled, or will be enabled, for Audio Conferencing are using Teams for all Meetings. The routing of inbound and outbound Audio Conferencing calls through On-network Conferencing is only supported for Teams meetings.

  • Assign Audio Conferencing licenses to all users who will be using On-network Conferencing.

  • Set up the Audio Conferencing service. For additional information, see Set up Audio Conferencing for Microsoft Teams.

  • Set up your Session Border Controller (SBC) for Direct Routing. For additional information, see Plan Direct Routing and Configure Direct Routing.

    If you are setting up Direct Routing only for the purposes of Audio Conferencing, then you need only complete “Step 1: Connect your SBC” for On-network Conferencing.

Enable the routing of dial-in calls to Microsoft Audio Conferencing through Direct Routing

To route dial-in calls made by your on-premises users to the Audio Conferencing service through Direct Routing, you need to configure appropriate routing rules for your SBCs and Private Branch Exchange(s) (PBXs).

You need to configure the telephony equipment of your sites to route calls to any service number of the conference bridge of your organization through a Direct Routing trunk.

You can find the service numbers in Teams admin center under Meetings -> Conferencing Bridges or by using the Skype for Business Online PowerShell cmdlet Get-CsOnlineDialInConferencingBridge. For additional information, see a list of Audio Conferencing numbers in Microsoft Teams.


This feature is not available to users with the pay-per-minute Audio Conferencing license.

Enable the routing of Teams meeting dial-out calls through Direct Routing

Teams meeting dial-out calls are initiated from within a meeting in your organization to PSTN numbers, including call-me-at calls and calls to bring new participants to a meeting.

To enable Teams meeting dial-out routing through Direct Routing to on-network users, you need to create and assign an Audio Conferencing routing policy called “OnlineAudioConferencingRoutingPolicy”.

The OnlineAudioConferencingRoutingPolicy policy is equivalent to the CsOnlineVoiceRoutingPolicy for 1:1 PSTN calls via Direct Routing. The OnlineAudioConferencingRoutingPolicy policy can be managed by using the following cmdlets:

  • New-CsOnlineAudioConferencingRoutingPolicy
  • Set-CsOnlineAudioConferencingRoutingPolicy
  • Get-CsOnlineAudioConferencingRoutingPolicy
  • Grant-CsOnlineAudioConferencingRoutingPolicy
  • Remove-CsOnlineAudioConferencingRoutingPolicy

For more information about routing for Direct Routing, see Configure voice routing for Direct Routing.

To enable the routing of meeting dial-out calls through Direct Routing, you need to:

  • Configure Audio Conferencing routing policies
  • Configure the routing on the telephony equipment of your organization
  • (Optional) Configure a dial plan

Dial-out calls from Teams meetings are coming from the default service number on the conference bridge. For additional information on the default service number of your Audio Conferencing bridge, see Change the phone numbers on your Audio Conferencing bridge.

Configure Audio Conferencing routing policies

The Audio Conferencing routing policy OnlineAudioConferencingRoutingPolicy determines which meeting dial-out calls are routed to Direct Routing trunks. If you are familiar with the CsOnlineVoiceRoutingPolicy policy, this policy works in a very similar way.

The following steps are needed to set up Audio Conferencing routing policies:

  1. Create PSTN usages
  2. Configure voice routes
  3. Create Audio Conferencing voice routing policies
  4. Assign a policy to your users

Create PSTN usages

PSTN usages are collections of voice routes. When a dial-out call is initiated from the meeting of a given organizer, voice routes will be used to determine the routing path of the call based on the PSTN usages that are associated to the user via the user’s voice routing policy.

You can create a PSTN usage by using the “Set-CsOnlinePstnUsage” cmdlet. For Example:

Configure voice routes

Voice routes determine the PSTN gateway that should be used to route a call based on the phone number that is dialed from a Teams meeting. Voice routes determine the PSTN gateway that should be used to route a given call by matching the phone number dialed from a Teams meeting with a regex pattern. When creating a voice route, the route must be associated to one or more PSTN usages.

Video Conferencing, Meetings, Calling Microsoft Teams

You can create a voice route and define the regex and gateways to be associated with the voice route by using the “New-CsOnlineVoiceRoute” cmdlet. For Example:

Create Audio Conferencing voice routing policies

Audio Conferencing voice routing policies determine the possible routes that can be used to route a call originating from the meetings of an organizer based on the target phone number of the meeting dial-out call. Audio Conferencing voice routing policies are associated to one or more PSTN usages, which in turn, determine the possible routes that will be attempted to be used for the meeting dial-out calls of the organizers associated to the policy.

You can create an Audio Conferencing voice routing policy by using the “New- CsOnlineAudioConferencingRoutingPolicy” cmdlet. For Example:

After the policy is assigned to a user, and when a meeting dial-out call is initiated from one of the user's meetings, the voice routes in the PSTN usages that are associated to the organizer through the user's voice routing policy will be evaluated. If the meeting dial-out call destination matches a regex in one of the voice routes that are associated to the organizer, the meeting dial-out call will be routed to the PSTN gateway defined in the voice route. If the meeting dial-out call destination does not match any of the voice routes associated to the organizer, the meeting dial-out call will be routed by Microsoft.

Assign a policy to your users

After the Audio Conferencing routing policies are defined, you can now assign them to users. After policies are assigned to them, the meeting dial-out calls will be evaluated against it to determine their routing path. Audio Conferencing routing policies are always evaluated based on the organizer of the meeting, independently from the user in the meeting that initiates a meeting dial-out call.

You can assign an Audio Conferencing voice routing policy to a user by using the “Grant-CsOnlineAudioConferencingRoutingPolicy” cmdlet. For example:

Configure routing on the telephony equipment of your organization

On the telephony equipment of your organization, you need to ensure that the meeting dial-out calls routed through Direct Routing are routed to the intended on-network destination.

(Optional) Configure a dial plan

A dial plan is a set of normalization rules that translate dialed phone numbers by an individual user into an alternate format (typically E.164) for purposes of call authorization and call routing.

A memo is one of the simplest forms of disseminating information within an organization. It is short and to the point and often includes elements of persuasion and a call-to-action. If you use the wrong format, the memo may not deliver your message correctly or distract and confuse the reader. Memo Outline A typical memo includes five sections: (1) Issue, (2) Brief Answer, (3) Facts, (4) Discussion, and (5) Conclusion. This is the best way to approach learning to draft effective legal memos. But keep in mind that, in practice, attorneys often prefer that memos do not adhere to this standard format. The legal memorandum is the most formal, polished, and comprehensive written document for reporting the results of your legal research. It summarises and analyses the relevant law and applies it to a particular fact situation. In practice, the memorandum can be a crucial document to a case or file. The memorandum might be sent. What would a memorandum be without the word Memorandum in the first place, right? And since this is a memo, it is required of you to capitalize the all the letters and make it bold so that everyone will automatically direct their attention to the said post from the supervisor or management. You may also see formal writing examples & samples. The Serene memo template in Word is an excellent choice for a yoga studio, acupuncture clinic, or spa. There’s also a classic business memo template in a variety of styles that suits most uses. No matter which memo templates you choose, you’ll find it’s easy than ever to. Example of memorandum.

By default, Teams users can dial-out to PSTN numbers in E.164 format, that is, +<country code><number>. However, dial plans can be used to allow users to dial phone numbers in other formats, for instance 4-digit extensions.


If you would like to enable extension-based dialing through On-network conferencing, you can set up dial plans to match the extension dialing pattern to the phone number ranges of the phone number of your organization. To set up dial plans, see Create and manage dial plans.

Known issues in Open Preview

The following is a list of known issues that are currently present in the Open Preview release of On-network conferencing. Microsoft is working on addressing these issues.

Dial-in calls with anonymous/hidden caller IDs that are routed through On-network conferencing cannot be connected to the meeting.If possible, set a configuration in your PBX or SBC to always send a caller ID for calls routed via On-network conferencing.
In some cases, the welcome message that is played to users when they dial in to the service (“Welcome to the Audio Conferencing service…”) is truncated and users do not hear the “Welcome” word.There are no workarounds for this issue at the moment.

Related topics


In this training, we introduce Audio Conferencing in Microsoft Teams—the abilityto join a Teams meeting from a regular phone and dial out from a meeting to aphone number. We’ll cover the capabilities of Audio Conferencing in Teams inaddition to requirements and planning considerations for Teams.


This tutorial includes links to existing content to help connect you with the latest, most up-to-date information. For an optimal learning experience, follow the links to learn and apply. If a link is labeled as “additional information,” you can consider it optional.

Microsoft Teams Conference Call Number

This training is for you if you’re:

  • An IT pro.
  • Responsible for planning, deploying, or managing Teams.
  • Considering planning, deploying, or managing Audio Conferencing in Teams.

We’ll cover the following sections:

  • Audio Conferencing requirements
  • Planning steps
  • Reporting

Audio Conferencing adds features and functionality to meetings in Teams. Werecommend that you complete Meetings in MicrosoftTeams before this tutorial.


Microsoft Teams is evolving on a regular basis—new features and functionality are added frequently. Please monitor the following resources to stay up-to-date:

  • Follow the Teams Blog.
  • Read the Teams Roadmap.
  • Learn about the latest released features in the Release Notes.
  • Participate in the Microsoft Teams technical community to get your feature questions answered.

If you have any questions or feedback about this training, please:

Microsoft Teams Conference In Progress Sign

  • Post in the comments section at the bottom of the “Next steps” page of thistutorial

To give us product feedback about Teams, such as ideas for new features, pleasevisit UserVoice.

Microsoft Teams Conference Pin

Audio Conferencing in Teams

With Audio Conferencing, participants use a regular phone to take part in Teamsmeetings—either by dialing in to the meeting from their phone or by usingdial-out functionality from within the meeting. Review the following resourcesto learn more about Audio Conferencing:

  • Audio Conferencingfeatures(estimated reading time 1 minute)
  • 9 tips for meeting with MicrosoftTeams(estimated reading time for “#1 - Join a meeting via Audio Conferencing” is1 minute; more if you read the whole article)
  • Audio Conferencing common questions(estimated reading time 7 minutes)
  • Dialing out from a meeting so other people can joinit(estimated reading time 2 minutes)

Scenario – Audio Conferencing

Garth works at Contoso, a company that has multiple offices. Garth frequentlyneeds to connect with people in other office locations, and because he oftenworks from home or goes out on the road, he’s a huge fan of Teams meetings. WhenGarth sends out a meeting invitation, it automatically adds information forAudio Conferencing. This makes the following scenarios possible:

  • Alice wants to attend Garth’s meeting but she’s on the road and has noaccess to a reliable network. Therefore, she joins the meeting by using thedial-in coordinates from the meeting invitation. During the dial-in process,she uses her PIN to authenticate, so she’s recognized by the system as“Alice.”
  • Bob, who’s currently at a hotel, joins the meeting by using the Teams clienton his PC. Unfortunately, the audio quality over the internet connection inthe hotel isn’t great, So Bob dials out to his own phone number from themeeting to join via the public switched telephone network (PSTN).
  • If the meeting participants decide during the call that they want to addusers at a different phone number, they can just dial out to the phonenumber and bring additional people into the meeting.
  • Other users can also join from the Teams client on their PC, Mac, or mobiledevice.

In Teams, meeting organizers can end a meeting for all meeting participants. This is useful in scenarios such as the following:

  • Educators can ensure that students don't stay in a meeting unsupervised after a class is finished.
  • For meetings that are being recorded, such as webinars, meeting organizers can ensure that the recording ends when the meeting ends.
  • Ending a meeting for all participants can help reduce your organization's PSTN usage and billing.

For example, when the meeting is finished, Garth can click End meeting from within the meeting in Teams to end it and remove all participants from it.

Considerations for Skype for Business customers

If you’re already using Skype for Business, you’ll need to consider thefollowing:

Skype for Business Server–homed users

If you’re using Skype for Business Server, Teams meetings scheduled by users who are homed on Skype for Business on-premises will not include PSTN meeting coordinates. If you assigned Audio Conferencing licenses to these users prior to March 1, 2019, you might need to unassign these licenses, wait for 2 hours, and then reassign them for the users to see the PSTN meeting coordinates.

Skype for Business Online–homed users

If users are homed in Skype for Business Online and are already enabled for Audio Conferencing, they’ll automatically be enabled for Audio Conferencing inTeams. The PIN they use for authenticating in meetings when they dial in will be the same for Skype for Business and Teams.

Envision Audio Conferencing

The practical guidance covers in detail what’s required to plan and successfullyimplement Audio Conferencing. Review the following articles to understand thesetechnical planning steps:

  • Define my success - AudioConferencing(estimated reading time 11 minutes)
  • Make my service decisions - AudioConferencing(estimated reading time 12 minutes)
  • Evaluate myenvironment(estimated reading time 12 minutes)
  • Plan my servicemanagement(estimated reading time 5 minutes)
  • Plan my users’experience(estimated reading time 5 minutes)
  • Document my successplan(estimated reading time 6 minutes)

Onboard Audio Conferencing

Just like envisioning, onboarding is covered in the practical guidance. Reviewthe following articles to understand how to onboard users for AudioConferencing:

  • Prepare myservice(estimated reading time 6 minutes)
  • Prepare myusers(estimated reading time 2 minutes)
  • Deploy myservice(estimated reading time 3 minutes)
  • Audio Conferencing troubleshooting and knownissues(estimated reading time for Teams-specific content is 2 minutes)

Microsoft Teams Conference Room

Exercise – Configure Audio Conferencing

In this exercise, you’ll have the chance to test Audio Conferencing in Teams.Although we don’t describe how to perform every action, we recommend somescenarios to try out.


  • An Office 365 organization with appropriate licenses to use Teams
    • We strongly recommend that you use a dedicated test tenant.
    • If you don’t have a test tenant, you can sign up for a trial tenant atOffice 365 Enterprise E5Trial.
    • Don’t run any tests in your production environment. Changing settings orpolicies might have a negative impact on all users and might affecttheir user experience.
  • At least two endpoints
    • This can be two PCs, but you can also use the client on your mobilephone.
    • A phone that can dial in to meetings and be dialed out to

Suggested scenarios to test

  • Enable users for Audio Conferencing.
  • Set different conference bridge numbers for different users.
  • Change the default conference bridge number for the tenant.
  • Change settings for the conference bridge number (different languages).
  • Change global settings for conference bridges (meeting entry and exitnotifications, PIN length, email notifications).
  • Observe the email being sent out to users.
  • Schedule Teams meetings, and review the meeting invitation.
  • Join a meeting from a phone.
  • Dial out from a meeting to a phone.
  • Use dual-tone multi-frequency controls while in a meeting to mute and unmutea phone.
  • End the meeting for all users.

Drive value

From a reporting perspective, you have two areas to look at:

  • Usage: How many meetings take place?
  • Quality: What is the quality of the meetings?

You should carefully monitor both areas:

  • Low usage means that users, for one reason or another, aren’t using theproduct. You can only determine the reasons by investigating further.Reasons can range from the perception that meetings are falling short ofuser requirements, to a lack of awareness or training, to quality problems.
  • Low quality, on the other hand, means that there are issues withconnectivity between users and Office 365. Low quality can lead to bad userexperience and lower usage. Refer to Microsoft 365 Reports in the Admin Center - Microsoft Teams useractivity(estimated reading time 5 minutes) to learn more about the usage reports.

Managing quality is outside of the scope of this training, but see the followingtraining material:

Next steps

We covered the following key learnings in this training:

  • Audio Conferencing in Teams
  • Requirements for Audio Conferencing
  • Reporting

Next steps

  1. Start using Audio Conferencing in Teams.
  2. Send us feedback:
    • Post in the comments section at the bottom of this page.
    • To give us Teams product feedback or to request a new feature, go to Teams UserVoice.
  3. Stay up to date:
    • Follow the Teams Blog.
    • Read the Teams Roadmap.
    • Learn about the latest released features in the Release Notes.
  4. Explore more training and tutorials.

Have an issue with this section? If so, please give us some feedback so we can improve this section.