Unclear robotic voice on iPhone 13 Max Pro phone call
I have recently purchased an iPhone 13 Max Pro. I have a problem on occasion (often) when I get a phone call or when I make a call, the other person sounds like a robot. It switches to normal voice and back to the robotic sound. Any suggestions is greatly appreciated, thanks.
[Re-Titled by Moderator]
iPhone 13 Pro Max, iOS 15