[Freeswitch-users] explanation for values of <audio> section in xml_cdr

Hi there! Can i find somewhere explanation about the meaning of values of <audio> section in xml_cdr? One of my clients having a one-way audio. CDR for this call looks pretty strange: http://pastebin.com/jqhCXKec I guess that freeswitch actually got packets from the client but drop all of them because of something. But not sure if my interpretation is correc