[OpenSIPS-Users] OpenSIPS TCP error INVITE/MESSAGE

Maksim Solovjov maxim.solovjov at gmail.com
Thu May 8 11:32:50 CEST 2014


Thank you for your answer. Can you elaborate on "voice switch and voice calls only"?

So there is nothing I can do about it? To make a connection working fast and reliable?

> On 08 May 2014, at 04:07, ag at ag-projects.com wrote:
> 
> You are confronted with the classic problem “this voice switch was designed to handle UDP and voice calls only” problem.
> 
> This is a VoIP industry level problem, which is yet to be properly addressed by anyone in the field.
> 
> Adrian
> 
>> On 07 May 2014, at 21:16, Maksim Solovjov <maxim.solovjov at gmail.com> wrote:
>> 
>> Hello,
>> 
>> From time to time I am encountering a problem while sending instant
>> messages ( using sip MESSAGE request ) or sending call invites.
>> Sometimes it works well and fast, sometimes it doesn't, sometimes
>> messages are delivered very slowly. With two last options ( doesn't
>> work at all and/or messages are delivered slowly ), I get the
>> following errors:
>> 
>> ERROR:core:tcp_blocking_connect: timeout 10 s elapsed from 10 s
>> ERROR:core:tcpconn_connect: tcp_blocking_connect failed
>> ERROR:core:tcp_send: connect failed
>> ERROR:tm:msg_send: tcp_send failed
>> ERROR:tm:t_forward_nonack: sending request failed
>> 
>> My devices are behind NAT ( mobile phones ) and I am using pjsip with
>> tcp connection.
>> Moreover I am trying to set up a persistent connection and hope, that
>> server will reuse it, when it needs to send something. I am sending
>> keep-alive packets every 600 seconds and I am not using any STUN or
>> TURN servers.
>> 
>> My opensips and rtpproxy are running on EC2, so are behind NAT as well.
>> And I don't have any STUN or TURN servers intalled ( should I install
>> any of it? )
>> 
>> Any help, advice or suggestions would be highly appreciated!
>> Here is my opensips.cfg, please help:
>> 
>> debug=3
>> log_stderror=no
>> log_facility=LOG_LOCAL1
>> 
>> fork=yes
>> children=4
>> 
>> dns=no
>> rev_dns=no
>> 
>> disable_tcp=no
>> 
>> listen=udp:private-ip:5060   # CUSTOMIZE ME
>> listen=tcp:private-ip:5060
>> 
>> advertised_address="public-ip"
>> alias="public-ip:5060"
>> alias="domain.com:5060" #// NB!! domain address is not associated with
>> public-ip ( using A record )
>> 
>> db_default_url="mysql://opensips:opensipsrw@database-url/opensips"
>> 
>> mpath="/usr/lib64/opensips/modules/"
>> 
>> ### MYSQL module
>> loadmodule "db_mysql.so"
>> 
>> ### Domain module
>> loadmodule "domain.so"
>> modparam("domain", "db_url",
>> "mysql://opensips:opensipsrw@database-url/opensips")
>> 
>> 
>> #### SIGNALING module
>> loadmodule "signaling.so"
>> 
>> #### StateLess module
>> loadmodule "sl.so"
>> 
>> #### Transaction Module
>> loadmodule "tm.so"
>> modparam("tm", "fr_timer", 5)
>> modparam("tm", "fr_inv_timer", 30)
>> modparam("tm", "restart_fr_on_each_reply", 0)
>> modparam("tm", "onreply_avp_mode", 1)
>> 
>> #### Record Route Module
>> loadmodule "rr.so"
>> /* do not append from tag to the RR (no need for this script) */
>> modparam("rr", "append_fromtag", 0)
>> 
>> #### MAX ForWarD module
>> loadmodule "maxfwd.so"
>> 
>> #### SIP MSG OPerationS module
>> loadmodule "sipmsgops.so"
>> 
>> #### FIFO Management Interface
>> loadmodule "mi_fifo.so"
>> modparam("mi_fifo", "fifo_name", "/tmp/opensips_fifo")
>> modparam("mi_fifo", "fifo_mode", 0666)
>> 
>> #### URI module
>> loadmodule "uri.so"
>> modparam("uri", "use_uri_table", 0)
>> 
>> #### USeR LOCation module
>> loadmodule "usrloc.so"
>> modparam("usrloc", "nat_bflag", "NAT")
>> modparam("usrloc", "db_mode",   0)
>> 
>> #### REGISTRAR module
>> loadmodule "registrar.so"
>> modparam("registrar", "tcp_persistent_flag", "TCP_PERSISTENT")
>> modparam("registrar", "received_avp", "$avp(rcv)")
>> 
>> loadmodule "nathelper.so"
>> modparam("nathelper", "received_avp", "$avp(rcv)")
>> 
>> loadmodule "rtpproxy.so"
>> modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:12221")
>> 
>> #### ACCounting module
>> loadmodule "acc.so"
>> modparam("acc", "early_media", 0)
>> modparam("acc", "report_cancels", 0)
>> modparam("acc", "detect_direction", 0)
>> modparam("acc", "failed_transaction_flag", "ACC_FAILED")
>> modparam("acc", "log_flag", "ACC_DO")
>> modparam("acc", "log_missed_flag", "ACC_MISSED")
>> 
>> 
>> route{
>> 
>>       force_rport(); #nathelper
>>       if (nat_uac_test("23")) { #nathelper
>>               if (is_method("REGISTER")) {
>>                       fix_nated_register(); #nathelper
>>                       setbflag(NAT);
>>               } else {
>>                       fix_nated_contact(); #nathelper
>>                       setflag(NAT);
>>               }
>>       }
>> 
>>       if (!mf_process_maxfwd_header("10")) {
>>               sl_send_reply("483","Too Many Hops");
>>               exit;
>>       }
>>       if (has_totag()) {
>>               # sequential requests within a dialog should
>>               # take the path determined by record-routing
>>               if (loose_route()) {
>> 
>>                       if (is_method("BYE")) {
>>                               setflag(ACC_DO); # do accounting ...
>>                               setflag(ACC_FAILED); # ... even if the
>> transaction fails
>>                       } else if (is_method("INVITE")) {
>>                               # even if in most of the cases is
>> useless, do RR for
>>                               # re-INVITEs alos, as some buggy
>> clients do change route set
>>                               # during the dialog.
>>                               record_route();
>>                       }
>> 
>>                       if (check_route_param("nat=yes"))
>>                               setflag(NAT);
>> 
>>                       # route it out to whatever destination was set
>> by loose_route()
>>                       # in $du (destination URI).
>>                       route(relay);
>>               } else {
>>                      if ( is_method("ACK") ) {
>>                               if ( t_check_trans() ) {
>>                                       # non loose-route, but
>> stateful ACK; must be an ACK after
>>                                       # a 487 or e.g. 404 from upstream server
>>                                       t_relay();
>>                                       exit;
>>                               } else {
>>                                       # ACK without matching transaction ->
>>                                       # ignore and discard
>>                                       exit;
>>                               }
>>                       }
>>                       sl_send_reply("404","Not here");
>>               }
>>               exit;
>>       }
>>       # CANCEL processing
>>       if (is_method("CANCEL"))
>>       {
>>               if (t_check_trans())
>>                       t_relay();
>>               exit;
>>       }
>> 
>>       t_check_trans();
>> 
>>       if ( !(is_method("REGISTER")  ) ) {
>>               if (from_uri==myself)
>>               {
>>               } else {
>>                       # if caller is not local, then called number
>> must be local
>>                       if (!uri==myself) {
>>                               send_reply("403","Rely forbidden");
>>                               exit;
>>                       }
>>               }
>>       }
>>       # preloaded route checking
>>       if (loose_route()) {
>>               xlog("L_ERR",
>>               "Attempt to route with preloaded Route's [$fu/$tu/$ru/$ci]");
>>               if (!is_method("ACK"))
>>                       sl_send_reply("403","Preload Route denied");
>>               exit;
>>       }
>> 
>>       # record routing
>>       if (!is_method("REGISTER|MESSAGE"))
>>               record_route();
>> 
>>       # account only INVITEs
>>       if (is_method("INVITE")) {
>> 
>>               setflag(ACC_DO); # do accounting
>>       }
>> 
>>       if (!uri==myself) {
>>               append_hf("P-hint: outbound\r\n");
>>               route(relay);
>>       }
>>       # requests for my domain
>>       if (is_method("PUBLISH|SUBSCRIBE"))
>>       {
>>               sl_send_reply("503", "Service Unavailable");
>>               exit;
>>       }
>> 
>>       if (is_method("REGISTER"))
>>       {
>>               setflag(TCP_PERSISTENT);
>>               if (!save("location"))
>>                       sl_reply_error();
>> 
>>               exit;
>>       }
>> 
>>       if ($rU==NULL) {
>>               # request with no Username in RURI
>>               sl_send_reply("484","Address Incomplete");
>>               exit;
>>       }
>>       # do lookup with method filtering
>>       if (!lookup("location","m")) {
>>               t_newtran();
>>               t_reply("404", "Not Found");
>>               exit;
>>       }
>> 
>>       if (isbflagset(NAT)) setflag(NAT);
>> 
>>       # when routing via usrloc, log the missed calls also
>>       setflag(ACC_MISSED);
>>       route(relay);
>> }
>> 
>> route[relay] {
>>       # for INVITEs enable some additional helper routes
>>       if (is_method("INVITE")) {
>> 
>>               if (isflagset(NAT)) {
>>                       rtpproxy_offer("ro");
>>               }
>> 
>>               t_on_branch("per_branch_ops");
>>               t_on_reply("handle_nat");
>>               t_on_failure("missed_call");
>> 
>>       }
>> 
>>       if (isflagset(NAT)) {
>>               add_rr_param(";nat=yes");
>>       }
>> 
>>       if (!t_relay()) {
>>               send_reply("500","Internal Error");
>>       };
>>       exit;
>> }
>> 
>> branch_route[per_branch_ops] {
>>       xlog("new branch at $ru\n");
>> }
>> 
>> 
>> onreply_route[handle_nat] {
>>       if (nat_uac_test("1"))
>>               fix_nated_contact();
>>       if ( isflagset(NAT) )
>>               rtpproxy_answer("ro");
>>       xlog("incoming reply\n");
>> }
>> 
>> failure_route[missed_call] {
>>       if (t_was_cancelled()) {
>>               exit;
>>       }
>> 
>>       # uncomment the following lines if you want to block client
>>       # redirect based on 3xx replies.
>>       ##if (t_check_status("3[0-9][0-9]")) {
>>       ##t_reply("404","Not found");
>>       ##      exit;
>>       ##}
>> 
>> }
>> 
>> 
>> Thank you in advance!
>> 
>> _______________________________________________
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>> Users at lists.opensips.org
>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
> 
> 
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