Callers hear their own echo when on any kind of call with my new phone.
I just got the Iphone 11 Pro Max, and ever since the first day, callers hear their own voice echoed while on the phone with me. It can be a regular phone call, a FaceTime call, or a Whatsapp call. The callers hear an echo in every scenario. I switched carriers and got a new sim card (I bought the Iphone unlocked from the Apple store), and the issue remains the same. I restarted my phone, and tried all the tricks recommended online. Anyone else? How can I fix this problem?
iPhone 11 Pro Max