Sound goes on and off

I’m using 1.4.4 asterisk with 2.2.1 freepbx, g729 for some reason I when I dial out I can hear the person then the sound goes off and back on again.

I get the following error and don’t know how to deal with it. Can someone help? Thanks.

[May 13 121754] NOTICE[31340] frame.c216 __ast_smoother_feed Dropping > extra frame of G.729 since we already have a VAD frame at the end.

for starters, sounds clearly like an asterisk issue. It also sounds like you are using VAD detection - which doesn’t really work, at least not very well, from what I have heard - with Asterisk. Turn it off in your phone and see if that helps.