---
title: "MS Teams - Sign-in To Teams Desktop"
slug: "ms-teams-sign-in-to-teams-desktop"
tags: ["calltower", "public"]
updated: 2026-09-18T14:06:41Z
published: 2026-09-18T14:06:41Z
canonical: "learn.calltower.com/ms-teams-sign-in-to-teams-desktop"
---

> ## 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 - Sign-in To Teams Desktop

## Summary:

Teams is a part of Microsoft 365, so you need a Microsoft 365 app for business or an Enterprise license to use it. If you don't know what email you should use, contact your company's IT support.

## Sign-in to Teams:

1. Start Teams.
  - In Windows, click **Start** ![Start button](https://cdn.us.document360.io/4662144b-ab1f-4796-8b7b-e9f9c609894f/Images/Documentation/e7dda90f-7dd2-4c7b-ad9e-1ca9888f8c90.png?sv=2026-02-06&spr=https&st=2026-11-04T20%3A35%3A27Z&se=2026-11-04T21%3A35%3A27Z&sr=c&sp=r&sig=jZbjmk5Qx3psUqJhqLk8mdcvEQCK926ojekmmwBFf6Q%3D) > **Microsoft Teams**.
  - On Mac, go to the **Applications** folder and click **Microsoft Teams**.
  - On mobile, tap the **Teams** icon.
2. Sign in with your Microsoft 365 username and password.