08-28-2022, 03:33 PM
I've had reliable calls pretty much since the beginning, which was a year ago, with one exception. If the phone dropped down to 2G and had to crank the transmitter up to maximum (happened whenever I was at work), then there was a lot of EMI that got into the microphone line causing a horrible noise for the person on the other end of the line (https://forum.pine64.org/showthread.php?tid=13922). The issue seems to have gotten better though I suspect that is mainly due to improving 4G coverage near my workplace preventing the fallback to 2G at max power.