Hello,

I am using SER as a redirect server.
Recently I came across an issue where the 302 sent back by SER is
not liked by a soft switch. Particularly , the format of the CONTACT
field according to the softswitch..

Here is an excerpt of the 302 reply send back ...

Session Initiation Protocol
    Status-Line: SIP/2.0 302 MovedTemporarily
        Status-Code: 302
        Resent Packet: True
        Suspected resend of frame: 73
    Message Header
        To: <sip:12345@172.20.20.46>;tag=b27e1a1d33761e85846fc98f5f3a7e58.dfa5
            SIP to address: sip:12345@172.20.20.46
            SIP tag: b27e1a1d33761e85846fc98f5f3a7e58.dfa5
        From: 172.20.20.46<sip:12345@172.20.20.46>;tag=161dda6e
            SIP Display info: 172.20.20.46
            SIP from address: sip:12345@172.20.20.46
            SIP tag: 161dda6e
        Via: SIP/2.0/UDP 10.99.99.140:9585;branch=z9hG4bK-d87543-730866470-1--d87543-;rport=9585
        Call-ID: 95239a63f0347c53
        CSeq: 1 INVITE
        Contact: sip:12345@172.20.20.37:5060
        Server: Sip EXpress router (0.8.14 (i386/linux))
        Content-Length: 0
        Warning: 392 172.20.20.46:5060 "Noisy feedback tells: pid=9550 req_src_ip=10.99.99.140 req_src_port=9585 in_uri=sip:12345@172.20.20.46 out_uri=sip:12345@172.20.20.37:5060 via_cnt==1

the softswitch is wanting the contact field with <sip:xxxx@xxx.xxx.xxx.xxx:5060> like a FROM or TO URI.

Here is ser.cfg part that does the sl_send_reply();

# do a stateless redirect, if return code is correct
    if (method=="INVITE")
    {
        xlog("L_INFO", "SourceIP <%is> \n");
        xlog("L_INFO", "From-uri<%fu>, r-uri <%ru> \n");
        if (!gl_redirect())
        {
            sl_send_reply("480", "TemporarilyUnavailable");
            xlog("L_WARN", "Sending a 480 response with r-uri <%ru>\n");
            break;
        }
        else
        {
            sl_send_reply("302", "MovedTemporarily");
            xlog("L_DBG", "Sending a 302 response with r-uri <%ru>\n");
            break;
        }
    };

Any help is appreciated.

thanks,
--
Jignesh Gandhi
jigpgandhi@gmail.com