Forum Discussion
knocking or tapping on outgoing calls
I had an Android (Google Pixel) and experienced knocking and tapping sounds for over a year. T-Mobile store changed the SIM card. It didn't help. This went on for more than a year. Then I got an IPho...
Here is the link to the apple forum, as you read through each report, you can see that phone type doesn't seem to be an issue and the common factor in all cases is the fact that everyone has T-mobile. https://discussions.apple.com/thread/254762603?sortBy=best&page=11
