10 Dec
2009
10 Dec
'09
6:06 p.m.
Hey,
I won't pretend to be an expert in Kamailio, someone will probably
suggest a better way. But here is how I rewrote my SIP packet's TO
header before relaying it to the next hop :
# Rewrite RURI
avp_printf("$rU", "prefix_$rU");
# Remove existing header
remove_hf("To") ;
# Add new header which is copied from RURI
insert_hf("To: $ru\r\n", "From");
DISCLAIMER : Several threads have said that changing the TO header is a
bad idea, so I only recommend using this as a last resort.
David
David a écrit :
Hey,
I do understand that normally the TO header should not be written, my
problem is that I am using the presence_dialoginfo module which uses the
TO header and not the RURI, which means that in order to tell the
difference between customer A's extension 101 and Customer B's extension
101, I rewrite the TO header to add context.
This is actually the ame problem that I started discussing here :
http://lists.kamailio.org/pipermail/users/2009-August/024316.html
Trouble is I have not had time to work on this since then.
Thanks,
David
Olle E. Johansson a écrit :
10 dec 2009 kl. 15.04 skrev Iñaki Baz Castillo:
_______________________________________________
Kamailio (OpenSER) - Users mailing list
Users(a)lists.kamailio.org
http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
http://lists.openser-project.org/cgi-bin/mailman/listinfo/users El Jueves, 10 de Diciembre de 2009, David
escribió:
This is propably something we need to change and make the To and From
headers writable.
It's not dirty to change them any more.
David: In the original SIP 1.0 protocol the To/From headers was part
of the dialog identification, thus you where not allowed to change
them in a proxy. THis was kept in RFC3261 - sip v2 - but has been
removed in an additional RFC a short while ago (seen from SIP history).
Regards,
/O
_______________________________________________
Kamailio (OpenSER) - Users mailing list
Users(a)lists.kamailio.org
http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
Hey,
I need to rewrite the $tU variable on a packet before it is
relayed. It
is ok if the change is only on the relayed packet and the $tU variable
change. The important thing is that I modify the To header, it seems
that rewritting $tU would be the easiest.
$tU is not writable, but just readable.
If you want to change the "To" header you should do some "dirty"
replacing operation (see textops module).