[Kamailio-Users] Nathelper Error

Hi, I have a SIP phone setup behind a router. When I placed a call from this phone, I got this error from OpenSER when the INVITE message was received. Jan 21 13:57:44 prod-ipser-10 /usr/sbin/openser[2100]: ERROR:nathelper:extract_body: message body has length zero Jan 21 13:57:44 prod-ipser-10 /usr/sbin/openser[2100]: ERROR:nathelper:fix_nated_sdp_f: cannot extract body from msg! Jan 21 13:57:45 prod-ipser-10 /usr/sbin/openser[2097]: ERROR:nathelper:extract_body: message body has length zero Jan 21 13:57:45 prod-ipser-10 /usr/sbin/openser[2097]: ERROR:nathelper:fix_nated_sdp_f: cannot extract body fr Any ideas? Lee