Hi,
On Thursday 11 December 2003 09:02, Santosh Subramanian, Noida wrote:
Hi, I have a client program , which will send REGISTER request to the proxy server and get back the response either "200 ok" or "401 unauthorized". I'm running SER proxy server in my local network and it is giving me "401 unauthorized". no problem in that.
Now I'm trying to contact iptel.org with that program. Its since I'm running my program behind the firewall, the address and port (195.37.77.101:5060) is opened for me both ways. So my request should have reached iptel.org. Problem is, no response from iptel.org.
can anyone working behind firewall send me the message format for REGISTER request. I've attached mine along with this mail.. kindly let me know if anything is wrong. I'm not able to proceed from this point.
Kind Regards, Santhosh.S
My Register Request:
REGISTER sip:san.iptel.org:5060 SIP/2.0
^^^^^^^^^^^^^^^^^ This is wrong! And probably the cause why you do not get a response. Because this request URI says that your request should be forwarded to the non-existing host san.iptel.org. You probably meant san@iptel.org. But that is also not correct. In Registers only the destination host has to be in the ruri.
Via: SIP/2.0/UDP 192.168.14.56:5060;branch=z9hG4bK2952839661;rport From: san sip:san@iptel.org;tag=946143070 To: san sip:san@iptel.org Call-ID: 320799555@195.37.77.101
^^^^^^^^^^^^^^^^^^^^^^^ This is IMHO also not correct. You should use a global unique identifier for your calls. But if you include the IP of the destination system this can clash with requests from this host. I understands the RFC in that way, that you should/can use the IP of your local host to at least garantie that the Call-ID can only be from your host.
Regards Nils
CSeq: 1 REGISTER Contact: san sip:san@192.168.14.56:5060 max-forwards: 70 user-agent: oSIP-ua/0.8.1 expires: 3600 Content-Length: 0
where username is "san"
My call flow shld. be:
san SER Sip Server
| REGISTER F1 | |------------------------------>| | 401 Unauthorized F2 | |<------------------------------| | REGISTER F3 | |------------------------------>| | 200 OK F4 | |<------------------------------|
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