[Freeswitch-users] One way audio or no audio at all on Polycom after make current

Hi guys, Has anything changed recently on NAT traversal helpers? I have Polycom phones that used to work with inherit_codec=true, both for voice and video. After a make current, the video works consistently and the voice is either one way or inexistent. When it's one way, the caller does not hear the remote party. This seems to be related to Polycom phones only. Trying to use early media for a forced codec negotiation does not help. Please let me know if you have any idea or how to get more data to further troubleshoot this issue. Thanks!