See a list of Audio Conferencing numbers
When you set up Audio Conferencing for Skype for Business and Microsoft Teams users, you can view the phone numbers that are available to them for audio conferencing. This list will have all of the audio conferencing phone numbers that are available to your organization.
Looking for prices? See Pricing for Audio Conferencing.
There isn't a resource that contains a listing of all of the dial-in numbers for Audio Conferencing. If you are looking to see if there are dial-in phone numbers available in your area or country/region, go to Skype for Business admin center > Voice > Phone Numbers, click Add, and then click New Service Numbers. Use the lists for Country/Region, State/Region, and City to filter your search. Also, if you are looking for toll-free service numbers, select Toll-Free from the State/Region list.
If there is only one phone number available in your organization, it will be used as the default number for all of your users. When multiple phone numbers are available, you can select the default phone number for each user. This default number will be included in Skype for Business and Microsoft Teams meeting invitations.
You can see Set the phone numbers included on invites to change the dial-in phone number for a single user.
Domestic dial-in numbers are dedicated to your organization and are the only ones that can be set as a default phone number. However, international dial-in numbers may be shared across multiple organizations.
To view your audio conferencing phone numbers
Sign in to Office 365 with your work or school account.
Go to the Office 365 admin center > Skype for Business.
In the Skype for Business admin center, in the left navigation, go to Audio conferencing > Microsoft bridge, and then:
You can view the phone numbers that are available for audio conferencing.
You can also view the location, and the primary and secondary languages that will be used by the audio conferencing auto attendant.
You can go to Audio conferencing > Users and select the user's properties to change the default number by choosing a new number from the list of available numbers in your organization. See Set the phone numbers included on invites.
Want to know how to manage with Windows PowerShell?
To save time or automate this, you can use the Get-CsOnlineDialInConferencingServiceNumber cmdlet.
Windows PowerShell is all about managing users and what users are allowed or not allowed to do. With Windows PowerShell, you can manage Office 365 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 topics:
Windows PowerShell has many advantages in speed, simplicity, and productivity over only using the Office 365 admin center, such as when you are making setting changes for many users at one time. Learn about these advantages in the following topics:
The Windows PowerShell module for Skype for Business Online enables you to create a remote Windows PowerShell session that connects to Skype for Business Online. This module, which is supported only on 64-bit computers, can be downloaded from the Microsoft Download Center at Windows PowerShell Module for Skype for Business Online.