[Serusers] error mesenger, rtpproxy

I am in nat, envio messages to another client but this it does not receive the instantaneous message. I have seen log and right lines of error appears two, this does not report ngrep, it uses I cosay and appeared these problems... as messenger 5.0 works? it is problem of the server or the client? single it happens when envio a message, the slate and shared use of applications I hope that thanks can help me # !! Nathelper onreply_route[1] { # NATed transaction ? if (isflagset(6) && status =~ "(183)|2[0-9][0-9]") { fix_nated_contact(); #un cambio para ver si se consigue lo deseado if (!(search("^Content-Length:\ 0"))){ force_rtp_proxy(); }; } else if (nat_uac_test("1")) { fix_nated_contact(); }; } 4(4602) ERROR: extract_mediaport: can't parse `m=' in SDP 4(4602) ERROR: force_rtp_proxy2: can't extract media port from the message 2(4593) ERROR: extract_mediaport: can't parse `m=' in SDP 2(4593) ERROR: force_rtp_proxy2: can't extract media port from the message 2(4593) ERROR: on_reply processing failed _________________________________________________________ Do You Yahoo!? Información de Estados Unidos y América Latina, en Yahoo! Noticias. Visítanos en http://noticias.espanol.yahoo.com