Set the PIN length for Audio Conferencing meetings in Microsoft Teams

When you set up audio conferencing for Microsoft Teams, you get an audio conferencing bridge. A conferencing bridge can contain one or more phone numbers. The phone number you set is included on the meeting invites for the Microsoft Teams app.

The audio conferencing bridge answers a call for people who are dialing in to a meeting using a phone. It answers the caller with voice prompts from an auto attendant and then, depending on your settings, can play notifications and ask callers to record their name. Microsoft bridge settings allow you to change the settings for meeting notifications and the meeting join experience, and set the length of the PINs that are used by meeting organizers. Meeting organizers use PINs to start meetings if they can't join the meeting using the Microsoft Teams app.


We are frequently updating how you can manage features, so the steps here might be a little different from what you see.

Setting the PIN length

Using the Microsoft Teams admin center:

  1. In the left navigation, go to Meetings > Conference Bridges.

  2. At the top of the Conference Bridges page, select Bridge Settings.

  3. In the Bridge settings pane, under PIN length, select the number of digits you want for the PIN.

  4. Select Save.


A PIN is different from a conference ID. Conference IDs are used by callers when they join the meeting. They are used to identify the meeting. The PIN is used to authenticate a caller as the meeting organizer.

Want to know more about PIN settings?

  • PINs can be from 4 to 12 digits; the default is 5. Numbers are only used when creating PINs. Letters and special characters aren't used.

  • A PIN is only required for the meeting organizer when a Microsoft Teams user doesn't start the meeting. If everyone is dialing in to the meeting, then the PIN is required for the meeting organizer to start the meeting.

  • PIN security settings are applied to all of the phone numbers that are associated with a Microsoft bridge. They're applied to all meetings that use the phone numbers associated with a given bridge.

Want to know more about Windows PowerShell?

Windows PowerShell is all about managing users and what users are allowed or not allowed to do. With Windows PowerShell, you can manage Microsoft 365 or Office 365 by using a single point of administration that can simplify your daily work when you have multiple tasks to do. To get started with Windows PowerShell, see these articles:

For more information about Windows PowerShell, see the Microsoft Teams PowerShell reference.