[Kamailio-Users] Recording RTP session
Vikram Ragukumar
vragukumar at signalogic.com
Fri Mar 19 16:47:54 CET 2010
Hector,
> 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
I'm no expert when it comes to rtpproxy or Kamailio , but i've
encountered a similar problem in the past. I took a quick look at your
logfile and i noticed that there aren't any SIP messages in the log (eg.
REGISTER, INVITE...). Are you sure that SIP messages are being proxied ?
if not recording would not be possible.
Regards,
Vikram.
>
>
>
> RTPproxy 1.2.1 is running with the following options:
>
>
>
> root at 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 at 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 at 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 proxy <udp: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 proxy <udp: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 proxy <udp: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 proxy <udp: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 proxy <udp: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 proxy <udp: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 proxy <udp: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 proxy <udp: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 proxy <udp: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 proxy <udp: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 proxy <udp: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 proxy <udp: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 proxy <udp: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 proxy <udp: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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