I am able to access my Asterisk server on my Android SIP client over WiFi but not over 3G. Could someone please help?
WiFi + commerical VoIP service: works great
WiFi + my Asterisk server: works great
3G + commercial VoIP service: works OK
3G + my Asterisk server: does not work. Registers OK, and dials OK, but no audio
Thank you very much for your help.