Manage telephone numbers for your organization

Currently, Microsoft supports two telephone number types:

Microsoft is working to simplify number types, but for now you will need to decide:

  • Which user locations need new telephone numbers from Microsoft?
  • Which type of telephone number (subscriber or service) do I need?
  • How do I port existing telephone numbers to Teams?

How you acquire and manage telephone numbers differs depending on your PSTN connectivity option.

If you need additional or other number types other than those numbers seen in the Microsoft Teams admin center, you can submit a telephone number request to the Phone Number Service Center.

User telephone numbers

There are two types of user telephone numbers, which can be assigned to users in your organization:

  • Geographic numbers have a relationship to a geographic area and are the most common. For example, geographic telephone numbers in most cases can only be used within a certain address, city, state, or region of the country.

  • Non-geographic numbers are known as national numbers or sometimes VoIP numbers. These numbers don't have a relationship to a geographic area within a country/region. For example, non-geographic numbers often have the same cost when calling the number from anywhere within the country/region. Also, some countries, such as Denmark, only have non-geographic numbers available.

Service telephone numbers

This section describes service numbers available from Microsoft that are included in your licensing. For information about service numbers provided by Operator Connect or Direct Routing, contact your provider.

There are two types of service telephone numbers provided by Microsoft--toll and toll-free--which can be assigned to services such as Audio Conferencing, Auto Attendants, or Call Queues. Service numbers have a higher concurrent call capacity than user numbers. Service number availability varies by country/region and the type of number (whether it's a toll or toll-free number). Microsoft’s telephony licenses in each country/region dictate what the number can be used for.

  • Toll service numbers - There are two types of toll service numbers, which may incur a toll cost to the caller:

    • Geographic numbers Geographic numbers have a relationship to a geographic area. For example, geographic telephone numbers in most cases can only be used within a certain address, city, state, or region of the country.

    • Non-geographic numbers Non-geographic numbers are national numbers that don't have a relationship to a geographic area within a country/region. For example, non-geographic numbers often have the same cost when calling the number from anywhere within the country/region.

  • Toll-free service numbers - These service numbers don't typically incur a toll cost to the caller. Teams provides national toll-free numbers in over 60 countries/regions.

    Caution

    Some countries/regions and originating number types, such as calls originating from mobile phones, may in some cases incur a toll cost to the caller.

Note

If you need to get more telephone numbers than this, contact the Phone Number Service Center.