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Green phone button appearing during Standby on iPhone 15 Pro

Does anyone know why a small green phone button appears when the iPhone 15 Pro is in StandBy? When this happens, I can touch the button and it goes into what appears like a call to the last person who called me, but it never completes the call. Also, the morning after this button appears, it attempts to call the last person who called me when I turn my alarm clock off. This is VERY odd.

iPhone 15 Pro, iOS 17

Posted on Oct 12, 2023 7:44 PM

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Question marked as Top-ranking reply

Posted on May 28, 2024 4:47 AM

I have the same issue as listed above, green phone on standby screen. Pressing it calls the last phone call completed. Just stated a few days ago.

4 replies

Oct 13, 2023 3:30 PM in response to m00nman

Hello m00nman,


Let's use the steps below to make sure your iPhone is up to date:


1. Back up your device using iCloud or your computer.
2. Plug your device into power and connect to the internet with Wi-Fi.
3. Go to Settings > General, then tap Software Update.
4. If you see more than one software update option available, choose the one that you want to install.
5. Tap Install Now. If you see Download and Install instead, tap it to download the update, enter your passcode, then tap Install Now. If you don't know your passcode, learn what to do.


You can also find those steps in this resource: Update your iPhone or iPad


If your iPhone is all up to date, let's restart: Restart your iPhone


1. Press and hold either volume button and the side button until the power-off slider appears.
The volume button is located on the left side of the device, and the side button is located on the right
2. Drag the slider, then wait 30 seconds for your device to turn off. If your device is frozen or unresponsive, force restart your device.
3. To turn your device back on, press and hold the side button (on the right side of your iPhone) until you see the Apple logo.


Updating and restarting can sometimes help address odd behaviors.


Should that still persist, you'll want to reach out to Apple Support: Apple Support They'll be in the best position to look into this further.


Take care.

Green phone button appearing during Standby on iPhone 15 Pro

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