The following are two pcap files that have one outbound call in them. Everything is identical except the version of Freeswitch. With the later version of Freeswitch, I am getting one way audio on the outbound call. On the later version of Freeswitch, there is an Update sip message that is not in the older version. Can anyone help me and let me know how I can fix the one way audio? I only get the one way audio when using Yealink phones behind an Edgemarc router. Old version of Freeswitch pcap: http://dl.dropbox.com/u/47191639/lan_side_yealink_t28_good_audio_edgemarc_ol... New Version of Freeswitch pcap: http://dl.dropbox.com/u/47191639/lan_side_yealink_t28_no_audio_edgemarc.pcap Thanks, Ira Tessler ConnectMe (732) 490-9007 x2 www.connectmevoice.com