There are two ways to change them. One is a relatively simple method built into iOS 18 and the other is a bit more advanced ...
While there may be debate about whether iOS 19 will be a UI revolution or evolution, there does seem to be a consensus view ...
On your iPhone, open the Settings app ... icon to the right of the person you are chatting with. Tap either icon to start a call — voice or video — via Wi-Fi. Related coverage from How ...