mediaproxy and rewritehostport configuration

I’m trying to set up a SIP and RTP proxy server to provide sip trunks to other SIP servers and PABX. The trunk to the PSTN will be provided by an other SIP server. This server will only handle signaling and rtp streams from our server. To test the configuration I’m using a softphone (eyebeam 1.5), a cisco 7912 with SIP IOS, both logged in on my own SIP server, and a mobile phone as a PSTN client.

Above shown in a diagram….



The following occurs:

1. When I call from the softphone (eyebeam) the the Cisco 7912 the call is established correct. As far as I can debug the clients are forced to use the mediaproxy running on our server. This also works the other way around.
2. When I call from PSTN to a SIP client, I can only hear audio from the PSTN on the SIP client.
3. When I call from a SIP client to the PSTN, I can only hear audio from the SIP client on the PSTN client.

So, my conclusion is:

When a call is setup from or to the PSTN network, audio is only working from the client the call is originated.

Below is the configuration from our SIP server and The Mediaserver.

Please help me out here…. Let me know if you have any questions or need more information

Kind regards,

Berry Bartels
RoutIT B.V.

OPENSER.CFG

Code:

listen=XXX.XXX.XXX.XXX alias="XXX.XXX.XXX.XXX" alias="voipit.nl" alias="sip01.voipit.nl" alias="sipproxy01.voipit.nl" debug=3 fork=no log_stderror=yes check_via=yes   # (cmd. line: -v) dns=no         # (cmd. line: -r) rev_dns=no      # (cmd. line: -R) sip_warning=yes syn_branch=yes server_signature=yes port=5060 children=4 fifo="/tmp/openser_fifo" fifo_db_url="mysql://openser:********@localhost/openser" mpath="/usr/lib/openser/modules/" loadmodule "mysql.so" loadmodule "auth.so" loadmodule "auth_db.so" loadmodule "sl.so" loadmodule "tm.so" loadmodule "rr.so" loadmodule "maxfwd.so" loadmodule "usrloc.so" loadmodule "registrar.so" loadmodule "textops.so" loadmodule "domain.so" loadmodule "nathelper.so" loadmodule "mediaproxy.so" loadmodule "xlog.so" loadmodule "acc.so" # --- module params # rr # add value to ;lr param to make some broken UAs happy modparam("rr", "enable_full_lr", 1) # mediaproxy modparam("mediaproxy", "mediaproxy_socket", "/var/run/mediaproxy.sock") modparam("mediaproxy", "natping_interval", 0) modparam("nathelper", "rtpproxy_disable", 1) modparam("nathelper", "natping_interval", 30) modparam("nathelper", "sipping_from", "sip:ping@voipit.nl") modparam("auth_db", "calculate_ha1", 1) modparam("auth_db", "password_column", "password") modparam("usrloc", "db_mode", 2) modparam("usrloc","db_url","mysql://openser:********@localhost/openser") modparam("acc", "db_url", "mysql://openser:********@localhost/openser") modparam("acc", "log_level", 1) modparam("acc", "log_flag", 1) modparam("acc", "db_flag", 1) # request routing logic route {    xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: ROUTE script\n");    # sanity checks    if (!mf_process_maxfwd_header("10"))    {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Too many hops\n");       sl_send_reply("483","Too Many Hops");       exit;    }    if (msg:len >= max_len)    {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Message too big\n");       sl_send_reply("513", "Message too big");       exit;    }    if(loose_route()) {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Loose Route -> route[1]\n");       t_relay();    }    if (!method=="INVITE")    {       record_route();    }    lookup("aliases");    if (uri==myself)    {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Registration :: URI is myself\n");       if (method=="REGISTER")       {          xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Registration\n");          if (!www_authorize("voipit.nl", "subscriber"))          {             www_challenge("voipit.nl", "0");             xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Registration :: Failed\n");             exit;          }          xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Registration :: Success\n");          save("location");          xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Registration :: Location Saved\n");          exit;       }       if (is_method("INVITE")||is_method("ACK"))       {          xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Invite\n");          if (lookup("location") && from_uri=~".*@voipit.nl")          {             xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Lookup Location :: Found :: Internal Call\n");             xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Internal Call -> Route[1]\n");             route(1);             exit;          } else if (lookup("location") && from_uri!=~".*@voipit.nl") {             xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Lookup Location :: Found :: Inbound Call\n");             xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Inbound Call -> Route[1]\n");             route(1);             exit;          } else {             xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Lookup Location :: NOT Found :: Outbound Call\n");             #   sl_send_reply("404","Not found :: Outbound Call");             xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Outbound Call -> Route[2]\n");             route(2);             exit;          }       }       if (is_method("SUBSCRIBE"))       {          xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Subscribe :: Subscribed in Database\n");          exit;       }       append_hf("P-hint: usrloc applied\r\n");    }    xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: End of script -> Route[1]\n");    route(1); } route[1] {    xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: route[1]\n");    if (is_method("INVITE"))    {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: route[1] :: INVITE\n");       t_on_reply("1");       use_media_proxy();    } else if (is_method("BYE|CANCEL")) {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: route[1] :: BYE OR CANCEL\n");       end_media_session();    }    if (!t_relay())    {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Route[1] :: T_RELAY error\n");       sl_reply_error();       end_media_session();    } else {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Route[1] :: T_RELAY\n");    }    exit; } route[2] {    xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: route[2]\n");    if (is_method("INVITE"))    {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: route[2] :: INVITE\n");       rewritehostport("YYY.YYY.YYY.YYY:5060");       t_on_reply("2");       use_media_proxy();    } else if (is_method("BYE|CANCEL")) {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: route[2] :: BYE OR CANCEL\n");       end_media_session();    }    if (!t_relay())    {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Route[2] :: T_RELAY error\n");       sl_reply_error();       end_media_session();    } else {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: Route[2] :: T_RELAY\n");    }    exit; } onreply_route[1] {    xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: onreply_route[1]\n");    if (status =~ "(183)|(2[0-9][0-9])")    {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: onreply_route[1] :: Status is 183 or 200-299\n");       if (client_nat_test("1"))    {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: onreply_route[1] :: nat_test(1) :: TRUE\n");       fix_contact();    } else {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: onreply_route[1] :: nat_test(1) :: TRUE\n");    }    use_media_proxy();    } } onreply_route[2] {    xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: onreply_route[2]\n");    if (client_nat_test("1"))    {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: onreply_route[2] :: nat_test(1) :: TRUE\n");       fix_contact();    } else {       xlog("L_NOTICE", "[$Ts]\t[$fu]\t[$tu]\t[$rm] :: onreply_route[2] :: nat_test(1) :: TRUE\n");    }    use_media_proxy(); }

MEDIAPROXY.INI

Code:

[Dispatcher] start = yes socket = /var/run/proxydispatcher.sock group = openser defaultProxy = /var/run/mediaproxy.sock [MediaProxy] start = yes socket = /var/run/mediaproxy.sock group = openser listen = none allow = Any proxyIP = XXX.XXX.XXX.XXX portRange = 60000:65000 TOS = 0xb8 idleTimeout = 60 holdTimeout = 180 forceClose = 0 [Accounting] accounting = none [Database] user = openser password = ******** host = 127.0.0.1 database = radius table = radacct [Radius] secret = secret server = localhost authport = 1812 acctport = 1813 dictionaries = /etc/radiusclient-ng/dictionary, /etc/openser/radius/dictionary, /usr/local/mediaproxy/dictionary retries = 2 timeout = 3

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