27 Feb
2012
27 Feb
'12
1:25 p.m.
txs a lot Alex, I will try it and let you know the results, sounds like a better idea.
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From: fborot(a)hotmail.com
To: users(a)lists.kamailio.org
Subject: Dropping 183 and sending 180
Date: Mon, 27 Feb 2012 12:34:05 -0500
Hello
We need to implement this scenario:
client -> proxy --> provider
The provider sends 183 with SDP and we need to drop it
and send 180 instead. I managed to do it like this:
1- on_reply block, I catch the 183 if it comes, call a
route block named "DROP_180" then drop it:
if ($rs == "183")
{
route(DROP_180);
drop();
}
2- on the new route block "DROP_180" I use
the command send_reply(180, "Ringing")
route[DROP_180] {
xlog("L_INFO","mylog: On Route
DROP_180.");
send_reply(180,"Ringing");
}
I had to do it on a separate block because the
send_reply command could not be used on the same on_reply block, also I had to send the
180 first before the 183 is dropped because the drop() apparently stops the script
execution and the 180 was not sent
The idea works fine, BUT the To tag on the locally
generated 180 is not the same as the one on the original 183 message. After the progress
(183 message), it comes the 200 OK, which we forward downstream unaltered. Now, the client
seems to ignore the 200 OK, (there is no ACK), we think that since the To tag on the
original 183 and the 200 OK does not match the one on the 180 that is why the customer is
processing the 200 OK. Any ideas here?
txs a lot