Phone rings at normal volume twice, then rings at low volume.
My Iphone 11Pro rings loudly on the first two rings. On the third and subsequent rings, it rings so softly that I can barely hear it even though I am right next to it.
I don't see anything in the settings menu that would allow me to change this.
This started recently, maybe 2 months ago. Sometimes if I reboot the phone, it will go back to ringing normally. But the problem returns within a day or so.
I am a transplant patient and need to take calls from the hospital at any hour. I am afraid that I may miss an important call because of this.
If anybody can help me restore normal ringing I would appreciate it.
Thanks.
iPhone 11 Pro Max, iOS 13