[Freeswitch-users] choppy sound on voice recording and conference

Hello, I have a problem with one of my sip trunks. The provider uses g729 with a ptime of 40ms and all incoming calls that are being recorded or go to the conference have a big delay and choppy sound, like a mismatch of ptime. I have already tried to put rtp-autofix-timing=false into the profiles and even changed the inbound-codec.. to g729@40i, but nothing helps. We have done a test with the provider switching for a test call to 20ms and the sound was perfect. The issue now is that the provider can't keep this setting only for us, he wants to send with 40ms. Is there a way to configure it on Freeswitch? Thank you Anestis