hi people, I have instaled SIP Express Router in al PC with debian sarge and trying to test it. I have tested the REGISTER and INVITE request, and it works, but when I send a MESSAGE with sipsak (sispak - M) the server gave me a response of "513 message too big". I have search the web for a solution but I did got it. The message arive to te server one time (it don`t enter into a bucle). Thank for helping, and sorry for mi bad english.