This is my first poet in this forum. We have two asterisk servers (trixbox ce 126.96.36.199) both were on same versions (1.4.22-4). but recently we upgraded one of the box to Asterisk version 188.8.131.52 and from then, the voice quality is very bad when using the IAX trunk. currently using g711 codec (ulaw) on the trunk. Not sure how to fix this issue.
Can anyone came across this issue?