Re: [Kamailio-Users] Recording RTP session

Then I guess that rtpproxy is not enforced.

Take a look at the SDP of the outgoing SIP messages if the IP address in the c= line is rewritten or not.

regards klaus

Am 23.03.2010 09:25, schrieb Hector.Ortiz@swisscom.com:

I mean, I've done all that before but I don't see anything besides the SIP traffic and DNS queries.

Héctor

-----Original Message----- From: Klaus Darilion [mailto:klaus.mailinglists@pernau.at] Sent: Dienstag, 23. März 2010 09:20 To: Ortiz Héctor, SCS-SIS-ICC-SPC-SBU Cc: users@lists.kamailio.org Subject: Re: [Kamailio-Users] Recording RTP session

of course "tcpdump -n udp" works too if you do not have ngrep around (e.g. Centos)

klaus

Am 23.03.2010 09:12, schrieb Hector.Ortiz@swisscom.com:

...

Hi

I've tried without recording but I don't see anything in the logs that indicate that the stream is being relayed. I suppose it is relaying because if I comment out the rtpproxy related functions (force_rtpproxy) in my configuration file I don't hear anything, whereas if they are uncommented I can hear audio. How can I troubleshoot this? I've done tcpdump on port 7890 on my local interface and nothing is shown in the dump.

Thanks for any pointers that help me solve my issue

Héctor

-----Original Message----- From: Klaus Darilion [mailto:klaus.mailinglists@pernau.at] Sent: Montag, 22. März 2010 10:18 To: Ortiz Héctor, SCS-SIS-ICC-SPC-SBU Cc: users@lists.kamailio.org Subject: Re: [Kamailio-Users] Recording RTP session

Hi!

Never did recording, but just:

1. try without recording and make sure that the stream really is relayed

via rtpproxy (tcpdump, ngrep). Your logs only show the initialization of nathelper module, contacting rtpproxy during startup. It does not show any call that is relayed.

2. only if above is verified and works well, add the start_recording()

command to you configuration. I think start_recording() should be called after force_rtpproxy.

regards klaus

Am 19.03.2010 16:13, schrieb Hector.Ortiz@swisscom.com:

...

Hi everybody

I've configured a SIP server (OpenSER 1.3.2) to work with rtpproxy and so far everything is fine, but now I want to be able to record the audio from a conversation. I've read that this is possible by using the function start_recording from the module NATHelper but I'm not able to get it working

RTPproxy 1.2.1 is running with the following options:

root@openser:/opt/rtpproxy-1.2.1/bin# ps uax | grep rtpproxy

rtpproxy 30827 0.0 0.0 26968 964 ? Ssl 14:49 0:00 /opt/rtpproxy-1.2.1/bin/rtpproxy -u rtpproxy rtpproxy -p /var/run/rtpproxy/rtpproxy.pid -l 192.168.34.1 -s udp:127.0.0.1 7890 -r /etc/openser/stored_conversations -S /tmp -a -d DBUG -P

root 31547 0.0 0.0 7524 892 pts/1 R+ 15:59 0:00 grep rtpproxy

Output from netstat

root@openser:/opt/rtpproxy-1.2.1/bin# netstat -tupna | grep rtpproxy

udp 0 0 127.0.0.1:7890 0.0.0.0:* 30827/rtpproxy

Relevant parts of the configuration file

.

# ------ nathelper params -----

modparam("nathelper", "natping_interval", 30)

modparam("nathelper", "ping_nated_only", 1)

modparam("nathelper", "sipping_bflag", 7)

modparam("nathelper", "sipping_from", "sip:pinger@openser.org")

modparam("nathelper", "rtpproxy_sock", "udp:127.0.0.1:7890")

modparam("nathelper", "force_socket", "udp:localhost:7890")

.

route[6] {

       xlog("L_INFO", "ROUTE 6");

       # NAT handling

       # Set reply routing block, to which control is passed after a

transaction

       # completed with a negative result but before sending a final reply

       t_on_failure("1");

       # Check if we're NATed

       if (isflagset(5) || isbflagset(6)) {

               # Use rtpproxy

               force_rtp_proxy();

               if ( start_recording() ) {

                       xlog("L_INFO", "RECORDING...");

               };

       }

       # Set reply routing block, to which control is passed each time

a reply

       # (provisional or final) for the transaction is received

       t_on_reply("1");

}

.

onreply_route[1] {

       xlog("L_INFO", "ONREPLY_ROUTE");

       if ((isflagset(5) || isbflagset(6))&&

status=~"(180)|(183)|(2[0-9][0-9])") {

               xlog("L_INFO", "NAT'd TRANSACTION");

               fix_nated_contact();

               force_rtp_proxy();

               if ( start_recording() ) {

                       xlog("L_INFO", "RECORDING...");

               };

       }

       else if (nat_uac_test("1")) {

               fix_nated_contact();

       }

       exit;

}

When I start OpenSER I see the following in syslog

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: NOTICE:core:main: version: openser 1.3.2-notls (x86_64/linux)

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: INFO:core:main: using 256 Mb shared memory

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: INFO:core:main: using 1 Mb private memory per process

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: INFO:sl:mod_init: Initializing StateLess engine

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: INFO:tm:mod_init: TM - initializing...

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: INFO:maxfwd:mod_init: initializing...

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: INFO:usrloc:ul_init_locks: locks array size 512

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: INFO:registrar:mod_init: initializing...

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: INFO:textops:mod_init: initializing...

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: INFO:xlog:mod_init: initializing...

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: INFO:avpops:avpops_init: initializing...

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: INFO:acc:mod_init: initializing...

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: INFO:dialog:mod_init: Dialog module - initializing

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: INFO:core:probe_max_receive_buffer: using a UDP receive buffer of 255 kb

Mar 19 16:08:45 openser /usr/sbin/openser[31630]: INFO:core:probe_max_receive_buffer: using a UDP receive buffer of 255 kb

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31632_0 V"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31632_0 20040107"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31632_1 VF 20050322"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31632_1 1"

Mar 19 16:08:45 openser /usr/sbin/openser[31632]: INFO:nathelper:rtpp_test: rtp proxyudp:127.0.0.1:7890 found, support for it enabled

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31631_0 V"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31631_0 20040107"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31633_0 V"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31633_0 20040107"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31634_0 V"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31634_0 20040107"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31635_0 V"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31635_0 20040107"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31636_0 V"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31636_0 20040107"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31637_0 V"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31637_0 20040107"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31638_0 V"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31638_0 20040107"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31637_1 VF 20050322"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31637_1 1"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31631_1 VF 20050322"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31631_1 1"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31634_1 VF 20050322"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31634_1 1"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31636_1 VF 20050322"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31636_1 1"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31633_1 VF 20050322"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31633_1 1"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31635_1 VF 20050322"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31635_1 1"

Mar 19 16:08:45 openser /usr/sbin/openser[31631]: INFO:nathelper:rtpp_test: rtp proxyudp:127.0.0.1:7890 found, support for it enabled

Mar 19 16:08:45 openser /usr/sbin/openser[31634]: INFO:nathelper:rtpp_test: rtp proxyudp:127.0.0.1:7890 found, support for it enabled

Mar 19 16:08:45 openser /usr/sbin/openser[31637]: INFO:nathelper:rtpp_test: rtp proxyudp:127.0.0.1:7890 found, support for it enabled

Mar 19 16:08:45 openser /usr/sbin/openser[31633]: INFO:nathelper:rtpp_test: rtp proxyudp:127.0.0.1:7890 found, support for it enabled

Mar 19 16:08:45 openser /usr/sbin/openser[31636]: INFO:nathelper:rtpp_test: rtp proxyudp:127.0.0.1:7890 found, support for it enabled

Mar 19 16:08:45 openser /usr/sbin/openser[31635]: INFO:nathelper:rtpp_test: rtp proxyudp:127.0.0.1:7890 found, support for it enabled

Mar 19 16:08:45 openser /usr/sbin/openser[31638]: INFO:nathelper:rtpp_test: rtp proxyudp:127.0.0.1:7890 found, support for it enabled

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31639_0 V"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31639_0 20040107"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31638_1 VF 20050322"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31638_1 1"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31640_0 V"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31640_0 20040107"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31642_0 V"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31642_0 20040107"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31643_0 V"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31643_0 20040107"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31644_0 V"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31644_0 20040107"

Mar 19 16:08:45 openser /usr/sbin/openser[31642]: INFO:nathelper:rtpp_test: rtp proxyudp:127.0.0.1:7890 found, support for it enabled

Mar 19 16:08:45 openser /usr/sbin/openser[31643]: INFO:nathelper:rtpp_test: rtp proxyudp:127.0.0.1:7890 found, support for it enabled

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31645_0 V"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31645_0 20040107"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31639_1 VF 20050322"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31639_1 1"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31642_1 VF 20050322"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31642_1 1"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31644_1 VF 20050322"

Mar 19 16:08:45 openser /usr/sbin/openser[31644]: INFO:nathelper:rtpp_test: rtp proxyudp:127.0.0.1:7890 found, support for it enabled

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31644_1 1"

Mar 19 16:08:45 openser /usr/sbin/openser[31640]: INFO:nathelper:rtpp_test: rtp proxyudp:127.0.0.1:7890 found, support for it enabled

Mar 19 16:08:45 openser /usr/sbin/openser[31639]: INFO:nathelper:rtpp_test: rtp proxyudp:127.0.0.1:7890 found, support for it enabled

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31640_1 VF 20050322"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31640_1 1"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31643_1 VF 20050322"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31643_1 1"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:handle_command: received command "31645_1 VF 20050322"

Mar 19 16:08:45 openser rtpproxy[30827]: DBUG:doreply: sending reply "31645_1 1"

Mar 19 16:08:45 openser /usr/sbin/openser[31645]: INFO:nathelper:rtpp_test: rtp proxyudp:127.0.0.1:7890 found, support for it enabled

But when I place the call no debug info from rtpproxy is being generated nor the RTP session is being saved to file.

Any idea what the problem can be?

Thanks in advance

Héctor

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