---
title: "MS Teams Admin Portal - Configuring Normalization Rules"
slug: "ms-teams-admin-portal-configuring-normalization-rules"
tags: ["calltower", "public"]
updated: 2026-07-27T13:00:38Z
published: 2026-07-27T13:00:38Z
canonical: "learn.calltower.com/ms-teams-admin-portal-configuring-normalization-rules"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://learn.calltower.com/llms.txt
> Use this file to discover all available pages before exploring further.

# MS Teams Admin Portal - Configuring Normalization Rules

## Summary

Normalization rule for extension to 10-Digit dialing

## Instructions

- 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)

![clipboard_e8c941b0b1bf4495f6b3114021be4c63b.png](https://cdn.us.document360.io/4662144b-ab1f-4796-8b7b-e9f9c609894f/Images/Documentation/clipboard_e8c941b0b1bf4495f6b3114021be4c63b.png?sv=2026-02-06&spr=https&st=2026-11-04T19%3A23%3A38Z&se=2026-11-04T20%3A23%3A38Z&sr=c&sp=r&sig=CQzZfQR8TafqIiqZJeZ7vOQNwdoDpCzoDKDd1fje0Q8%3D)
  - **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]
> 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](https://learn.microsoft.com/en-us/microsoftteams/create-and-manage-dial-plans)

[What are dial plans? - Microsoft Teams | Microsoft Learn](https://learn.microsoft.com/en-us/microsoftteams/what-are-dial-plans)

Additional information or metadata returned in an API response that provides context or details about the primary data.