Hi everyone,
I'm trying to make kamailio works as a SBC in front of Asterisk. I have read
the tutorial
http://kb.asipto.com/asterisk:realtime:kamailio-4.0.x-asterisk-11.3.0-astdb and
it is close to what I'm looking for but still a little different. I want don't
want kamailio to do auth and I want it to be a media gateway. The media and SIP
path have to look like that:
Phone 1 ----- kamailio -----Asterisk ---- Kamailio ---- Phone 2
First I have add an outboundproxy field in the Asterisk configuration to make
all SIP messages from Asterisk passe through Kamailio. Then I started a minimal
conf for Kamailio and it works at least for the SIP part. Call can be
established perfectly.
However the RTP proxy part is a mess. Kamailio changes the IP address in the
sdp part only for INVITE messages and not for the 200 OK responses, so there is
only one side of the media passing through Kamailio, the other side is sent
directly to asterisk. But even for the half part rtpproxy craches with a
segfault and Kamailio doesn't transmit this media.
I have been searching some helps on google but nothing so far :/ I hope that
someone here could help me.
-----------------------------------------------
#!KAMAILIO
####### Defined Values #########
#!define ASTERISK 192.168.51.43
####### Global Parameters #########
#!ifdef WITH_DEBUG
debug=4
log_stderror=no
#!else
debug=2
log_stderror=no
#!endif
memdbg=5
memlog=5
log_facility=LOG_LOCAL0
fork=yes
children=2
auto_aliases=no
# to avoid simple attacks, use unconventional port
port=5060
####### Modules Section ########
mpath="/usr/local/lib/kamailio/modules"
loadmodule "db_text.so"
loadmodule "mi_fifo.so"
loadmodule "kex.so"
loadmodule "sl.so"
loadmodule "rr.so"
loadmodule "pv.so"
loadmodule "maxfwd.so"
loadmodule "textops.so"
loadmodule "siputils.so"
loadmodule "xlog.so"
loadmodule "sanity.so"
loadmodule "ctl.so"
loadmodule "cfg_rpc.so"
loadmodule "mi_rpc.so"
loadmodule "path.so"
loadmodule "rtpproxy.so"
#!ifdef WITH_DEBUG
loadmodule "debugger.so"
#!endif
# ----------------- setting module-specific parameters ---------------
modparam("mi_fifo", "fifo_name", "/tmp/kamailio_fifo")
# add value to ;lr param to cope with most of the UAs
modparam("rr", "enable_full_lr", 1)
# do not append from tag to the RR (no need for this script)
modparam("rr", "append_fromtag", 0)
modparam("path", "use_received", 1)
modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:7722")
#!ifdef WITH_DEBUG
# ----- debugger params -----
modparam("debugger", "cfgtrace", 1)
#!endif
####### Routing Logic ########
route {
xlog("L-ALERT", "new message !!!!!!!!!!!!!!!");
if (!sanity_check()) {
exit;
}
if ( !mf_process_maxfwd_header("10") )
{
sl_send_reply("483","To Many Hops");
xlog("L_NOTICE", "$si $rm $ru -- too many hops\n");
exit;
}
if (af==INET)
{
force_rport();
if (src_ip != ASTERISK)
{
$du = "sip:192.168.51.43:5060";
add_path_received();
route(RTPPROXY);
record_route();
}
else
{
loose_route();
route(RTPPROXY);
record_route();
}
}
forward();
}
route[RTPPROXY] {
rtpproxy_manage("cwei");
}
onreply_route {
if (af==INET)
{
rtpproxy_manage("cwei");
}
return(1);
}
---------------------------------------------
Guillaume
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
