Your work phone is now your walkie talkie as well. Open the Walkie Talkie app in Teams when you get to work and connect to a channel. For instructions, see Get started with Teams Walkie Talkie.
To use Walkie Talkie, your phone must be connected to the internet, either over Wi-Fi or cellular data. Because Walkie Talkie communication uses the internet, the distance between you and your co-workers isn't an issue.
In this article
Communicate when Walkie Talkie is in the background
What if my phone is locked?
Not a problem. As long as you're connected to a channel, Walkie Talkie works. For more information about the devices and headsets that make this possible, see Walkie Talkie devices and accessories.
If you're using a wired headset with Walkie Talkie, see Set up and use a wired headset with Walkie Talkie.
Speak on a channel
Only one person can speak at a time on a channel.
Important: Walkie Talkie doesn’t support one-on-one calls. To speak one-on-one with a co-worker, you can call that person directly in Teams.
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Connect to the channel you want to communicate in. If you want to use live captions, turn on live captions.
Note: To connect to a channel and use Walkie Talkie on iOS devices, Walkie Talkie must be the only PTT app that’s running on your phone. Close any other PTT apps before you use Walkie Talkie, and make sure to tap the Leave button in the other app if it's running in the background.
If you selected one channel, you're automatically connected to that channel.
Note: Walkie Talkie remembers the last channel that you connected to and automatically selects and connects you to that channel the next time you open Walkie Talkie.
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Do one of the following:
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If you're using a headset or phone with a push-to-talk (PTT) button, press and hold the PTT button on your headset or phone. Continue holding the button while you talk.
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If you're using a headset with a play/pause or answer/end call button, tap the button on the headset.
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Select and hold the large Talk button in the center of the Walkie Talkie screen. Continue holding the button while you talk.
You'll know you're the speaker when you see a circle around the Talk button and hear the PTT chime. Here are examples of the experience with one channel selected and with pinned favorite channels.
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When you finish talking, do one of the following, to allow others to speak.
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If you're using a headset or phone with a PTT button, release the PTT button.
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If you're using a headset with a play/pause or answer/end call button, tap the button on the headset.
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Release the Talk button in the center of the Walkie Talkie screen.
Listen on a channel
When someone starts speaking, you'll see their name and photo (if available).
Here are examples of the experience with one channel selected and with pinned favorite channels. 
Note: To stop receiving transmissions, tap Stop listening to disconnect from the channel.
If you selected one channel
You'll hear activity on that one channel.
If you pinned your favorite channels
You can turn on the Listen to multiple channels toggle on the Select channels screen if you want to hear activity on all your selected channels.
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If the toggle is off, you’ll hear activity only on your active channel. When there’s activity on any of your other pinned channels, you’ll see a speaker icon on those channels.
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If the toggle is on, you’ll hear activity on all your pinned channels. A speaker icon on any of your pinned channels indicates there’s activity on those channels.
While listening to multiple channels, keep the following things in mind:
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You’ll hear incoming communications on all your pinned channels, one channel at a time.
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If there’s activity on two or more of your pinned channels at the same time, you’ll hear the communications on the channel where the activity started first. For example, if a coworker is talking on the Decor channel and another coworker is talking on the Kitchen channel at the same time, you’ll hear the person who started talking first.
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You can only speak on one channel at a time, and the channel you speak on must be your active channel.
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If your phone is locked, you’ll see a notification that tells you who is speaking and what channel they’re on, along with an option to switch to that channel to make it active.
Communicate when Walkie Talkie is in the background
You can easily communicate with your team even when Walkie Talkie is running in the background.
On iOS devices
When Walkie Talkie is running in the background, tap the blue button or blue bar at the top of the screen.
The location of the button or bar differs slightly depending on your iPhone version and whether your phone is locked. For example, if your phone is unlocked, you’ll see it at the left corner or middle of the screen in the Dynamic Island. If your phone is locked, it appears at the right corner of the screen.
You’ll see the name of the channel you’re connected to, along with Talk and Leave buttons. 
From here, you can:
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Listen on the channel. You’ll see the name and photo (if available) of the team member who is speaking.
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Tap Talk to speak on the channel.
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Tap Leave to stop listening and disconnect from the channel. You’ll be prompted to confirm that you want to leave the channel. To reconnect, open Walkie Talkie, and then connect to the channel.
Additionally, if you’re using a supported headset that has a dedicated PTT button, you can press it to speak on your connected channel.
On Android devices
When Walkie Talkie is running in the background, do one of the following:
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If your phone has a dedicated PTT button, press it to speak on your connected channel.
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If you’re using a headset that has a PTT button or play/pause button (or answer/end call button), press it to speak on your connected channel.
Want to know more?
Get started with Teams Walkie Talkie
