11 Jul
2017
11 Jul
'17
5:52 a.m.
Hello,
I have a problem with RTPProxy.
Scenario:
SS7 (PSTN) ---> ASTERISK BOX --> Kamailio --> UAC
In case of incoming call from PSTN, when called party answer the call
after 60 seconds of ringing, then the call is without audio and in this
case I see in the log this message:
Creating session
Jul 11 11:24:32 b2b-voice-sipproxy-v3 rtpproxy[731]:
INFO:handle_command: new session
766d0e006d8969d36c628e363ea7c3e1(a)upc.cz, tag as7a7c86ae;1 requested,
type strong
Jul 11 11:24:32 b2b-voice-sipproxy-v3 rtpproxy[731]:
INFO:handle_command: new session on a port 52902 created, tag as7a7c86ae;1
Jul 11 11:24:32 b2b-voice-sipproxy-v3 rtpproxy[731]:
INFO:handle_command: pre-filling caller's address with XXX.XXX.XXX.XXX:32740
Answer after approx 60 seconds
Jul 11 11:25:40 b2b-voice-sipproxy-v3 rtpproxy[731]:
INFO:handle_command: lookup request failed: session
766d0e006d8969d36c628e363ea7c3e1(a)upc.cz, tags as7a7c86ae;1/l0g9iusua2;1
not found
Jul 11 11:25:40 b2b-voice-sipproxy-v3 rtpproxy[731]: INFO:handle_delete:
forcefully deleting session 1 on ports 35196/36656
Kamailio log (answer)
Jul 11 11:25:40 b2b-voice-sipproxy-v3 kamailio[5268]: INFO: <script>:
UID:766d0e006d8969d36c628e363ea7c3e1@upc.cz -- ONREPLY_ROUTE:
rtpproxy_manage(co)
Jul 11 11:25:40 b2b-voice-sipproxy-v3 kamailio[5268]: ERROR: rtpproxy
[rtpproxy.c:2536]: force_rtp_proxy(): incorrect port 0 in reply from rtp
proxy
It looks like there is somewhere 60 seconds session timeout. But I don't
know where. When the call is answered during first 60 seconds, then
everything is OK and we have both audio.
Kamailio reply route configuration:
onreply_route[REPLYROUTE] {
#
#-- On-replay block routing --
#
xlog("L_INFO","UID:$ci -- ONREPLY_ROUTE1: $rm $si avp
$avp(s:131) $avp(s:132)");
if(has_body("application/sdp")) {
xlog("L_INFO","UID:$ci -- ONREPLY_ROUTE:
rtpproxy_manage(co)");
rtpproxy_manage("co");
}
if ((isflagset(FLT_NATS) || isbflagset(FLB_NATB)) &&
status=~"(183)|(2[0-9][0-9])"){
xlog("L_INFO","UID:$ci -- ONREPLY_ROUTE1:
force_rtp_proxy");
append_hf("P-hint: onreply_route|force_rtp_proxy \r\n");
}
if (isbflagset(FLB_NATB)) {
xlog("L_INFO","UID:$ci -- ONREPLY_ROUTE1: P-hint:
Onreply-route - fixcontact");
append_hf("P-hint: Onreply-route - fixcontact \r\n");
fix_nated_contact();
}
exit;
}
Some parameters settings.
modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:7722")
modparam("rtpproxy", "extra_id_pv", "$avp(extra_id)")
modparam("rtpproxy", "rtpproxy_disable_tout", 20)
modparam("rtpproxy", "rtpproxy_tout", 2)
modparam("tm", "disable_6xx_block", 1)
modparam("tm", "fr_timer", 5000) ## 5 seconds.
modparam("tm", "restart_fr_on_each_reply", 0)
modparam("tm", "auto_inv_100_reason", "Trying")
modparam("dialog", "dlg_flag", 4)
modparam("dialog", "rr_param", "rtp")
modparam("dialog", "default_timeout", 7230)
modparam("dialog", "dlg_match_mode", 1)
modparam("dialog", "db_mode", 1)
modparam("dialog", "enable_stats", 1)
modparam("dialog", "send_bye", 1)
modparam("dialog", "lreq_callee_headers", "TH: dlh\r\n")
modparam("rr", "enable_full_lr", 1)
modparam("rr", "append_fromtag", 1)
modparam("rr", "enable_double_rr", 1)
RTPproxy is installed from Debian package:
/usr/bin/rtpproxy -s udp:127.0.0.1 7722 -u rtpproxy rtpproxy -p
/var/run/rtpproxy/rtpproxy.pid -F -l XXX.XXX.XXX.XXX -d DBUG LOG_LOCAL0
Any advice?
Thanks