Microsoft 365 Business Voice makes it easy for small and medium organizations to turn Microsoft Teams into a powerful and flexible telephone system. If you already have phone numbers that you would like transfer to Business Voice, you can bring them with you by porting them from your previous service provider to Microsoft.
Porting your existing phone numbers to Microsoft 365 Business Voice can be a simple and straightforward process. To minimize potential issues, it is important to avoid common mistakes when submitting your porting requests.
This document provides a summary of how our porting process works and includes additional guidance and resources to assist you in completing your porting requests most efficiently.
Let’s quickly look at the porting process on a high level:
Below are a few best practices that would make your number porting process as smooth as possible:
Creating a Number Porting Request
If you are in a supported region for the automated number porting process through Teams Admin Center, we strongly recommend you to use this method. You’ll benefit from an automated process and a structured wizard with additional guidance.
When your specific porting request (or request for new phone numbers) is not supported by the Wizard in Teams Admin Center, it needs a manual port request via e-mail. Please use the aliases as defined in the PSTN Service Desk contact information article.
The following rules are important to be aware of when creating porting requests:
Validate Information you provide in a porting request.
The success of your port request depends on the accuracy of the information that you provide to Microsoft when you create it. Please validate the information accuracy with the existing provider before submitting the port request. You can do this by obtaining a Customer Service Record (U.S.), Equipment Record (Canada), or pre-order validation bill from the current carrier.
Do not cancel existing services until porting is complete.
Your customer should not cancel their existing services with the current carrier until the number port has been completed. Number porting occurs based on account information and if you cancel your subscription, it will not succeed.
Porting different number types
Phone numbers in Business Voice can have two types: user phone numbers that can be assigned to users and service numbers that can be assigned to services such as Call Queues.
When the phone numbers to be ported contain both user and service numbers, it is recommended to create a single port request towards Microsoft for all numbers set as user numbers. After the number port is approved (but not yet executed), you can contact the service desk and ask for an “Inventory Type Change” where you list the numbers that you’d like to change to service Numbers. In this model, the Service Desk can than schedule the inventory change right after the number port has been completed.
In addition to the above guidance, Microsoft is taking the following steps to improve the number porting experience:
For more details and additional tips and tricks on number porting, please refer to the Number Porting - Best Practices Webinar and additional resources below:
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