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MS Teams Admin Portal - Configuring Normalization Rules


Normalization rule for extension to 10-Digit dialing


  • From the Teams Admin Center, Go to Voice Menu, and select Dial Plan.
  • Click into your default org dial plan, you will see a button +(add new rule)
  • Once you click + to add a new rule (the menu on the right will appear)
    • Name: Enter the extension number (3- or 4-digit extension)
    • Description: Enter the extension Number (3-or-4-digit extension)
    • Rule Creation Mode: Advanced
    • If Condition: (the number dialed matches this regular expression ^\b123\b)
    • Then do this: Add +1 and the 10-digit number


Note: Normalization Rules and Auto Attendant Extension Dialing do not pull extension data from the same places


Additional Information

For additional information see Microsoft articles here:

Create and manage dial plans - Microsoft Teams | Microsoft Learn

What are dial plans? - Microsoft Teams | Microsoft Learn

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