Whenever I am on the phone to another iPhone, there is a loud beeping noise that only the other person can hear. It happens when I'm on the phone for more than 10 minutes. I am not running out of calls, etc.
Thank you for taking the time to write in and welcome into the Community.
This is an interesting one and certainly something I'd like to help look into for you. I would like to ask if you can hear this yourself when calling to your landline and then call from the landline to the mobile?
Also, can you let me know if you're experiencing this after taking the SIM out rebooting, then reboot with the SIM back in?