The UA could be behind a restricted (or port-restricted or symmetric) NAT. Server B will not be in the NATs nat-table and incoming INVITEs will not be allowed through. Try to put the UA on a public IP address to verify that this is what is happening. g-)

---- Original Message ---- From: Raymond Chen To: serusers@lists.iptel.org Sent: Monday, April 04, 2005 08:48 AM Subject: [Serusers] t_replicate can't call to registered endpoint

Dear all

We have setup two SER servers which replicates endpoint registration info to the second server as follow:

Server A: if (method=="REGISTER") {

                    #if (src_ip=="xxx.xxx.xxx.xxx") {
                    #        save("location");
                    #       break;
                    #};

                    if (!www_authorize("", "subscriber")) {
                            www_challenge("", "1");
                            break;
                    };

                    if (!src_ip==xxx.xxx.xxx.xxx) {
                            t_replicate("xxx.xxx.xxx.xxx",

"5060"); };

                    save("location");
                    break;
            };

Server B:

        save_noreply("location");

registration process went fine. But when we use Server B to call the replicated endpoint, endpoint does not response to the INVITE message. Port and IP both are correct in the INVITE message.

What could be the problem?

Regards

---

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