When using a softphone on my PC, registration to Asterisk (on my laptop) registration works fine (also calls work).
When using Espressif ESP32, it registers but says Unreachable when I have put Qualify=yes in Asterisk.
When I change qualify to no, reload asterisk, exit, then change again qualify=yes and reload asterisk, then my Espressif ESP32 shows OK/ms, and can call android/iphone. (only voice if I call from the phone to esp32, not from esp32 to iphone. But that is the next problem to solve).
Could this be a bug in ESP32-VOIP SW ? Or how can I get around this problem ?