See countries and regions that are supported for more information.

Skype for business online audio conferencing. It can also add PSTN Audio Conferencing details if this service is added or changed. Dial out from an Audio Conferencing meeting to add someone else from anywhere in the world or your mobile phone with the Skype for Business or Microsoft Teams app installed. Under Joining conference calls in the Join meeting audio from drop-down menu do one of the following.

This service is called ACP certified Audio Conferencing Providers. Whilst that seems cheap on the face of it once you start licensing thousands of users that builds. Go to the Microsoft 365 admin center Teams Legacy portal.

Skype for Business Online is the cloud-based version of Skype for Business Server and is part of the Microsoft 365 cloud service. Using the Skype for Business admin center. Pay-per-minute requires your organization to have Communications Credits enabled with a license assigned to each user in order for Audio Conferencing to work.

Providers have a direct connection to Skype for Business Online and could offer dial-in numbers and PINs for SfBO conferences. Using the Skype for Business admin center. The default is 5.

Under Security enter the number of digits you want for the PIN in the PIN length list and then click Save. When you are setting up Audio Conferencing for Skype for Business or Microsoft Teams you will get an audio conferencing bridge. Microsoft Teams replaces Skype for Business.

Select Audio conferencing Users and then select the user from the list and click Edit. Meeting Migration Service is an automatic service in Office 365 that could find Skype for Business Server meetings and replace them with Skype for Business Online meetings automatically when a user is moved from SfBS to SfBO. If you need more details see Assign Microsoft as the audio conferencing provider.