11 Dec
2003
11 Dec
'03
6:31 a.m.
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(a)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(a)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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