The Phone Link supports messages sent by Short Message Service (SMS). It also supports Multimedia Messaging Service (MMS) messaging. You can still send your favorite photos and GIFs from your PC.

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page.You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

Microsoft may limit or block voice or SMS authentication attempts that are performed by the same user, phone number, or organization due to high number of failed voice or SMS authentication attempts. If you are experiencing this error, you can try another method, such as Authenticator App or verification code, or reach out to your admin for ...

Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.

Try using another verification method connected to your account. For example, if you are using SMS to verify yourself and are hitting a block, try using an alternate email that is connected to the account to receive your authorization code.

With Teams Premium and Virtual Appointments, you can notify customers about their appointment confirmation, service details, information and other reminders via SMS text messages. Important: SMS text notifications in Virtual Appointments requires a Teams Premium license.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

You can start a chat with an SMS participant in supported countries, see How to chat via SMS on Microsoft Teams (free). You can also link your Android in Microsoft Teams (free) to connect your phone to Teams—get access to your SMS text messages and contacts, and receive notifications.

Learn how to start a one-to-one chat with SMS participants and send invites for others to join Microsoft Teams (free), so you can chat with them.

If you're an administrator, you can find more information in Configure and enable users for SMS-based authentication. If your organization hasn't made SMS sign-in available, you won't see an option for it when registering a phone with your account.