Getting Skype for Business phone numbers for your users

Before you can set up users in your organization to make and receive phone calls, you must use the Skype for Business admin center to get your phone numbers.

You have two ways of getting numbers for your users:

  • Get new numbers using the Skype for Business admin center.

  • Port or transfer your existing numbers from your current service provider or phone carrier.

You must use the New numbers page to see, search, acquire, and reserve those numbers. You can search by Country/RegionState and City and then enter the number of phone numbers you will need for your users.

Note: If you need help with setting up your phone numbers for your organization, you can Contact Support.

Get new phone numbers for your users
  1. Sign in to Office 365 with your work or school account.

  2. Go to the Office 365 admin center > Skype for Business.

  3. In the left navigation go to Voice > Phone numbers > Add and then click New user numbers.

    IMPORTANT: For you to see the Voice option in the left navigation in the Skype for Business admin center, you must first buy at least one Enterprise E5 license, one Skype for Business Cloud PBX add-on license, or one Skype for Business PSTN Conferencing add-on license.

  4. On the Add new user numbers page, use drop downs to choose:

    • Country/Region

    • State/Region

    • City

  5. Under Quantity, enter the number of phone numbers that you want for your organization and click Add to create a reservation. You have 10 minutes to select your phone numbers and you if you take more than 10 minutes the phone numbers will be returned to the pool of phone numbers.

    Note: You can see the number of phone numbers which is based on the number of licenses listed next to Total user number your can acquire.

  6. You can click Show numbers to see the full list of phone numbers. This is helpful is you don't want to select a specific phone number in the list.

  7. Select the phone numbers you want and then click Acquire numbers.

    Important: The number of phone numbers for users (subscribers) is equal to the total number of Domestic + Domestic and International Voice Calling plan licenses you have assigned multiplied by 1.1 + 10 additional phone numbers are given. For example, if I have 50 users in total with either Domestic and Domestic and International Voice Calling Plans, you can acquire 65 phone number (50 x 1.1 + 10).

    If you need to get more telephone numbers than this, please contact Contact Office 365 for business support - Admin Help.

Port or transfer phone numbers from your service provider or phone carrier
  • If you have 999 or fewer phone numbers that you need for your users, you can use the New Local Number Port Order wizard in the Skype for Business admin center. Follow the steps found in Transfer existing phone numbers over to Skype for Business Online to transfer your phone numbers over to Skype for Business Online.

  • If you have more than 999 phone numbers that you need ported over, see Manually submit a port order request to submit a port order service request or order to get all of these phone numbers ported over to Office 365.

Show phone numbers for your organization

  1. Sign in to Office 365 with your work or school account.

  2. Go to the Office 365 admin center > Skype for Business.

  3. In the left navigation, go to Voice > Phone numbers. The phone numbers you have for your organization are listed under Number.

    Note: You can view specific phone numbers based and the type of number in the Assigned and Number type columns.

What else do you need to know about user’s phone numbers?

  • To acquire phone numbers, you must use the New numbers page to see, search and reserve those numbers. You can search by Country/Region, State/Region and City and then enter the number of phone numbers you will need for your users

  • After you get your phone numbers, you will need to assign a phone number to each of your users. See Assign, change or remove a phone number for a user.

  • You can use the Phone numbers page to see the list of available phone numbers under the Number column, see whether the phone number has been assigned under the Assigned column and the location for the phone number under the Location column.

See Also

Emergency calling terms and conditions

Skype for Business Online PSTN services use terms

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