There is no particular way to reproduce it. Just sometimes it happens. I have kept my notifican and swipe option hidden when the phone is in locked state. That’s the only thing that comes to my mind
iPhone 15 Plus, iOS 18
Do one of the following:
. when unlockedTip: You can have Siri announce incoming calls, which you can accept or decline using your voice.
Decline a call and send it directly to voicemail · Press the side button twice quickly. · Tap the Decline Call button . · Swipe up on the call banner.
Answer or decline incoming calls on iPhone
My slide to answer sometimes does not work on my iphone 15 plus
