[Freeswitch-users] Audio out of sync

Hi, We have setup a single freeswitch server which receives a call from a DID provider (ex: voipms) and do a outbound call another provider (ex: lesnet) (we also record call). For short duration call, everything is working fine, but for calls with long duration (like more than 10 minutes), audio is getting out of sync. Has anyone had this issue? Where could be the problem? -- Thanks and Regards, Ashwin Jain