Phone App Showing Badge Erroneously

In general, phone app shows a badge notification when you've missed a call (couldn't / wouldn't answer it), and the notification goes away when you open recent calls.

If the notification is still there, try to force restart your device:

• On an iPhone X, iPhone 8, or iPhone 8 Plus: Press and quickly release the Volume Up button. Press and quickly release the Volume Down button. Then, press and hold the Side button until you see the Apple logo.
• On an iPhone 7 or iPhone 7 Plus: Press and hold both the Side and Volume Down buttons for at least 10 seconds, until you see the Apple logo.
• On an iPhone 6s and earlier, iPad, or iPod touch: Press and hold both the Home and the Top (or Side) buttons for at least 10 seconds, until you see the Apple logo.

Check also: Settings>Notifications>Phone.. where you can disable icon app badge.

Regards

Giulio

.

Sorry, in my previous post, first sentence, I forgot to write that the badge notification can come also from a voicemail (but I'm sure you already knew it).

Regards

Giulio

You're quite welcome, Douglas.

Glad it helped