[Serusers] Ser as a presence server with other SIP proxy as registrar and rtp proxy

Fri Mar 31 14:21:07 CEST 2006

Hi Vaclav,

Thanks for the information. 
I changed my configuration for REGISTER messages and they were forwarded to my SIP proxy.
But the clien't can't connect. I think that's because of authentication requirement on my SIP proxy.

When I make the client connect directly to my SIP proxy I see the following SIP header on it:

12:09:22.967260:  SIP: 193.243.202.97:5060       <<      85.105.102.167:8359     payload: 792 bytes
REGISTER sip:193.243.202.97 SIP/2.0
Via: SIP/2.0/UDP 192.168.2.6:8359;branch=z9hG4bK-d87543-c2540260b6061b1e-1--d87543-;rport
Max-Forwards: 70
Contact: <sip:200000900568888888 at 192.168.2.6:8359;rinstance=c314db726308b27a>
To: "900568888888"<sip:200000900568888888 at 193.243.202.97>
From: "900568888888"<sip:200000900568888888 at 193.243.202.97>;tag=f72f1c2c
Call-ID: 2748934b5d115c55 at TkVUV09SS1lPTi5jb21wYW55MS50c3Q.
CSeq: 2 REGISTER
Expires: 3600
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO
Supported: eventlist
User-Agent: eyeBeam release 3014w stamp 26359
Authorization: Digest username="200000900568888888",realm="NcxSip",nonce="48058627",uri="sip:193.243.202.97",response="92be0838ca4f794d23d4bb3d34e12aa9",algorithm=MD5
Content-Length: 0

But if I make the client connect to SER and then forward the REGISTER message to my SIP proxy, I see the following SIP header arriving:

12:16:42.263635:  SIP: 193.243.202.97:5060       <<      193.243.207.107:10003   payload: 716 bytes
REGISTER sip:193.243.202.97 SIP/2.0
Via: SIP/2.0/UDP 10.100.100.15;branch=z9hG4bKcee1.8c792d45.0
Via: SIP/2.0/UDP 192.168.2.6:8359;received=85.105.102.167;branch=z9hG4bK-d87543-aa1ee14dcf543535-1--d87543-;rport=10002
Max-Forwards: 16
Contact: <sip:200000900568888888 at 192.168.2.6:8359;rinstance=2c28e04a9c62f011>
To: "900568888888"<sip:200000900568888888 at 193.243.202.97>
From: "900568888888"<sip:200000900568888888 at 193.243.202.97>;tag=d37fe827
Call-ID: 6d7923631c258f31 at TkVUV09SS1lPTi5jb21wYW55MS50c3Q.
CSeq: 1 REGISTER
Expires: 3600
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO
Supported: eventlist
User-Agent: eyeBeam release 3014w stamp 26359
Content-Length: 0

It seems that when the SIP message is forwarded through SER, the Authorization information is missing.
How can I make SER to forward the message without modifying the message ?

Also how can I modify user and domain information for the forwarded messages ?

Thanks,
ilker

-----Original Message-----
From: Vaclav Kubart [mailto:vaclav.kubart at iptel.org]
Sent: Friday, March 31, 2006 8:37 AM
To: İlker Aktuna (Koç.net)
Cc: serusers at lists.iptel.org
Subject: Re: [Serusers] Ser as a presence server with other SIP proxy as registrar and rtp proxy

Hi,
your solution is possible - separated presence server from other SIP communication. For forwarding you need cfg like this:

        if (method=="...") { # here put method name which should be forwarded
                if (!t_newtran()) {
                        log(1, "newtran error\n");
                        sl_reply_error();
                        break;
                };

                if (!t_forward_nonack("machine.domain.com", 5060)) {
                        log(1, "forward failed\n");
                        t_reply("500", "Forward failed");
                }
                break;
        }

I'm using SER as proxy and other SER as presence server. Proxy forwards presence related messages to presence server, it looks like:

 <http://387555.sigclick.mailinfo.com/sigclick/070E0602/0C044804/034A0314617914.jpg>
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