[Serusers] ser to asterisk (another domain)

Hello, I want to make a call from ser to asterisk but it doesn't work. My asterisk-Server is running on 192.168.1.222 and my ser-Server on 192.168.1.223. If I want to make a call to sip:12@192.168.1.222 there appears the message: "Proxy Authentication Required". For routing to asterisk I use the following code: if (!(uri==myself)) { route(2); break; }; route[2] { # outbound requests are allowed only for registered BigU users if (!(src_ip==192.168.1.223) & !(proxy_authorize("192.168.1.223", "subscriber"))) { # ACK and CANCEL have no security mechanisms so they are just # noted /*if (method=="ACK" | method=="BYE") { log(1, "LOG: failed outbound authentication for ACK granted\n"); } else if (method=="CANCEL") { log(1, "LOG: failed outbound authentication for CANCEL granted\n"); }else {*/ proxy_challenge("192.168.1.223", "0"); break; #}; }; # to maintain credibility of our proxy, we check From in INVITEs if (!src_ip==192.168.1.223 & method=="INVITE" & !check_from()) { log(1, "LOG: Spoofed from attempt\n"); sl_send_reply("403", "Use From=id next time"); break; }; append_hf("P-hint: OUTBOUND ON INTERNET\r\n"); if (!t_relay()) { sl_reply_error(); break; }; } Thanks! -- +++ Neu: Echte DSL-Flatrates von GMX - Surfen ohne Limits +++ Always online ab 4,99 Euro/Monat: http://www.gmx.net/de/go/dsl