Hi Greger,
I found the exact problem which have been paining
me.
1) the nated Sip-proxy;
its sending the route headers as if it forgets it staying behind
the Nat.and sending the call as
some thing like this
SER-server is frowarding the call to pstn Gateway as it recieves
and just rewriting the host name.
and the other problem(I think)
2) PSTN Gateway.
even when call connects it is adding the strict route headers as
it recieves from SER-server
and when it sends 200 0k after connecting the call
it is not getting back or SER-server is also not getting back
the "ACK" from the nated proxy
because the nated proxy itself add the contact header as
(private-ip ) ofcourse it is following strictly the SIP-PROTOCOL
so,these are the two problems i found ,
Some providers are providing calls to this nated sip-proxy
-------> How ????
Why the SER-server is also not following the path where "INVITE"
message came ?????
How to stop the Nated Sip-proxy to stop sending the headers in
"INVITE"message not including the record route or contact headers in
the message --- ??????
Or is there any way to do in SER-server itself ( majorly
prefered) not to contact private ip-address and to follow the next
address which is NAT-IP ---???????
(I think its foolish question )---> Or is there any way to
get registered another sip-proxy in location database.----???????
Please suggest me some thing to get out of this problem.
Thank You.
Regards,
Ravi.