[Serusers] 404 Not Found

Hi all. I'm testing the very basic functionalities of SER as a proxy with two soft phones, one for Windows (phone(a)albasoft.com) and one for Linux (phone2(a)albasoft.com). The proxy is at 192.168.0.15. There's no problem with phone -> phone2 communication, but no way in establishing phone2 -> phone: I always get the following message: 404, Not Found. As I have been able to see with Ethereal, phone2 tries to INVITE sip:phone@192.168.0.15:5060, and the proxy responds by saying it can't find such user (but user sip:phone@albasoft.com is indeed registered!). I think the problem is the :5060 part, but I'm not sure. Can anybody help me?. Thans in advance. Oh, yes, my config file (as you will see, it's the simplest): listen=192.168.0.15 alias=albasoft.com alias=albasoft.com:5060 alias=192.168.0.15 alias=192.168.0.15:5060 route{ # initial sanity checks -- messages with # max_forwards==0, or excessively long requests if (!mf_process_maxfwd_header("10")) { sl_send_reply("483","Too Many Hops"); break; }; if (msg:len >= max_len ) { sl_send_reply("513", "Message too big"); break; }; # we record-route all messages -- to make sure that # subsequent messages will go through our proxy; that's # particularly good if upstream and downstream entities # use different transport protocol #if (!method=="REGISTER") record_route(); # subsequent messages withing a dialog should take the # path determined by record-routing if (loose_route()) { # mark routing logic in request append_hf("P-hint: rr-enforced\r\n"); route(1); break; }; if (!uri==myself) { # mark routing logic in request append_hf("P-hint: outbound\r\n"); route(1); break; }; # if the request is for other domain use UsrLoc # (in case, it does not work, use the following command # with proper names and addresses in it) if (uri==myself) { if (method=="REGISTER") { # Uncomment this if you want to use digest authentication # if (!www_authorize("iptel.org", "subscriber")) { # www_challenge("iptel.org", "0"); # break; # }; save("location"); break; }; lookup("aliases"); if (!uri==myself) { append_hf("P-hint: outbound alias\r\n"); route(1); break; }; # native SIP destinations are handled using our USRLOC DB if (!lookup("location")) { sl_send_reply("404", "Not Found"); break; }; }; append_hf("P-hint: usrloc applied\r\n"); route(1); } route[1] { # send it out now; use stateful forwarding as it works reliably # even for UDP2TCP if (!t_relay()) { sl_reply_error(); }; } Eduard San Anselmo