iPhone Incoming Caller display Photo to Full Screen

How to change the full-screen caller display photo to a small icon like previous in an iPhone?

hi, with iOS 18 apple removed that incoming caller full screen photo. now its contact poster. you have to configure a good resolution photo as contact poster and that will show full screen when the caller calls you. it also syncs with icloud so if the caller in your contacts call you and have setup contact poster, that will show too.

I hate full-screen posters. Is there any option to make it a small poster?

I havent tested it yet, but try this method. instead of contact poster just set profile photo and see if that helps to show smaller photo prefix to name when the callers calls you. that may help.