[SR-Users] RTP Proxy issue on Kamailio 4

Thu Oct 24 23:23:05 CEST 2013

*Hello ,
This is the first time to put a question on
*sr-users<http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users>
mailing
list * and i hope to help me to solve my issue...i'm following this post
http://saevolgo.blogspot.com/2013/08/rtpproxy-revisited-kamailio-40.html to
setup RTP Proxy for kamailio 4 but it's NOT working as predicted  and i'm
receiving this error message on asterisk...*

[2013-10-16 05:20:04] ERROR[3216][C-0000002c]: netsock2.c:269
ast_sockaddr_resolve: getaddrinfo("192.168.1.80192.168.1.80", "(null)",
...): Name or service not known
[2013-10-16 05:20:04] WARNING[3216][C-0000002c]: chan_sip.c:10873
process_sdp_c: Unable to lookup RTP Audio host in c= line, 'IN IP4
192.168.1.80192.168.1.80'
[2013-10-16 05:20:04] WARNING[3216][C-0000002c]: chan_sip.c:10464
process_sdp: Insufficient information in SDP (c=)...

The problem is NOT at the asterisk side but at the proxy side...when
kamailio rewrites the SDP message it adds the public IP twice in the "C"
filed of the SDP message instead of only one time like this  'IN IP4
192.168.1.80192.168.1.80' but i don't know why it's doing this...? if u
have any idea or recommendations plz tell me cuz i'm new to
kamailio...waiting ur reply and thanks in advance... also here's my config
file if u want to take a look at it...

#!KAMAILIO

#!define WITH_MYSQL

#!define WITH_AUTH

#!define WITH_USRLOCDB

#!define WITH_ASTERISK

#!define WITH_NAT

#

# Kamailio (OpenSER) SIP Server v4.0 - default configuration script

#     - web: http://www.kamailio.org

#     - git: http://sip-router.org

#

# Direct your questions about this file to: <sr-users at lists.sip-router.org>

#

# Refer to the Core CookBook at http://www.kamailio.org/dokuwiki/doku.php

# for an explanation of possible statements, functions and parameters.

#

# Several features can be enabled using '#!define WITH_FEATURE' directives:

#

# *** To run in debug mode:

#     - define WITH_DEBUG

#

# *** To enable mysql:

#     - define WITH_MYSQL

#

# *** To enable authentication execute:

#     - enable mysql

#     - define WITH_AUTH

#     - add users using 'kamctl'

#

# *** To enable IP authentication execute:

#     - enable mysql

#     - enable authentication

#     - define WITH_IPAUTH

#     - add IP addresses with group id '1' to 'address' table

#

# *** To enable persistent user location execute:

#     - enable mysql

#     - define WITH_USRLOCDB

#

# *** To enable presence server execute:

#     - enable mysql

#     - define WITH_PRESENCE

#

# *** To enable nat traversal execute:

#     - define WITH_NAT

#     - install RTPProxy: http://www.rtpproxy.org

#     - start RTPProxy:

#        rtpproxy -l _your_public_ip_ -s udp:localhost:7722

#

# *** To enable PSTN gateway routing execute:

#     - define WITH_PSTN

#     - set the value of pstn.gw_ip

#     - check route[PSTN] for regexp routing condition

#

# *** To enable database aliases lookup execute:

#     - enable mysql

#     - define WITH_ALIASDB

#

# *** To enable speed dial lookup execute:

#     - enable mysql

#     - define WITH_SPEEDDIAL

#

# *** To enable multi-domain support execute:

#     - enable mysql

#     - define WITH_MULTIDOMAIN

#

# *** To enable TLS support execute:

#     - adjust CFGDIR/tls.cfg as needed

#     - define WITH_TLS

#

# *** To enable XMLRPC support execute:

#     - define WITH_XMLRPC

#     - adjust route[XMLRPC] for access policy

#

# *** To enable anti-flood detection execute:

#     - adjust pike and htable=>ipban settings as needed (default is

#       block if more than 16 requests in 2 seconds and ban for 300 seconds)

#     - define WITH_ANTIFLOOD

#

# *** To block 3XX redirect replies execute:

#     - define WITH_BLOCK3XX

#

# *** To enable VoiceMail routing execute:

#     - define WITH_VOICEMAIL

#     - set the value of voicemail.srv_ip

#     - adjust the value of voicemail.srv_port

#

# *** To enhance accounting execute:

#     - enable mysql

#     - define WITH_ACCDB

#     - add following columns to database

#!ifdef ACCDB_COMMENT

  ALTER TABLE acc ADD COLUMN src_user VARCHAR(64) NOT NULL DEFAULT '';

  ALTER TABLE acc ADD COLUMN src_domain VARCHAR(128) NOT NULL DEFAULT '';

  ALTER TABLE acc ADD COLUMN src_ip varchar(64) NOT NULL default '';

  ALTER TABLE acc ADD COLUMN dst_ouser VARCHAR(64) NOT NULL DEFAULT '';

  ALTER TABLE acc ADD COLUMN dst_user VARCHAR(64) NOT NULL DEFAULT '';

  ALTER TABLE acc ADD COLUMN dst_domain VARCHAR(128) NOT NULL DEFAULT '';

  ALTER TABLE missed_calls ADD COLUMN src_user VARCHAR(64) NOT NULL DEFAULT
'';

  ALTER TABLE missed_calls ADD COLUMN src_domain VARCHAR(128) NOT NULL
DEFAULT '';

  ALTER TABLE missed_calls ADD COLUMN src_ip varchar(64) NOT NULL default
'';

  ALTER TABLE missed_calls ADD COLUMN dst_ouser VARCHAR(64) NOT NULL
DEFAULT '';

  ALTER TABLE missed_calls ADD COLUMN dst_user VARCHAR(64) NOT NULL DEFAULT
'';

  ALTER TABLE missed_calls ADD COLUMN dst_domain VARCHAR(128) NOT NULL
DEFAULT '';

#!endif

####### Defined Values #########

# *** Value defines - IDs used later in config

#!ifdef WITH_MYSQL

# - database URL - used to connect to database server by modules such

#       as: auth_db, acc, usrloc, a.s.o.

#!define DBURL "mysql://kamailio:kamailiorw@localhost/kamailio"

#!ifdef WITH_ASTERISK

#!define DBASTURL "mysql://root:passw0rd@192.168.1.10/mya2billing"

#!endif

#!endif

#!ifdef WITH_MULTIDOMAIN

# - the value for 'use_domain' parameters

#!define MULTIDOMAIN 1

#!else

#!define MULTIDOMAIN 0

#!endif

# - flags

#   FLT_ - per transaction (message) flags

# FLB_ - per branch flags

#!define FLT_ACC 1

#!define FLT_ACCMISSED 2

#!define FLT_ACCFAILED 3

#!define FLT_NATS 5

#!define FLB_NATB 6

#!define FLB_NATSIPPING 7

####### Global Parameters #########

#!ifdef WITH_DEBUG

debug=4

log_stderror=yes

#!else

debug=2

log_stderror=no

#!endif

memdbg=5

memlog=5

log_facility=LOG_LOCAL0

fork=yes

children=4

/* uncomment the next line to disable TCP (default on) */

#disable_tcp=yes

/* uncomment the next line to disable the auto discovery of local aliases

   based on reverse DNS on IPs (default on) */

#auto_aliases=no

/* add local domain aliases */

#alias="sip.mydomain.com"

/* uncomment and configure the following line if you want Kamailio to

   bind on a specific interface/port/proto (default bind on all available)
*/

#listen=udp:10.0.0.10:5060

/* port to listen to

 * - can be specified more than once if needed to listen on many ports */

port=5060

#!ifdef WITH_TLS

enable_tls=yes

#!endif

# life time of TCP connection when there is no traffic

# - a bit higher than registration expires to cope with UA behind NAT

tcp_connection_lifetime=3605

mhomed=1

####### Custom Parameters #########

# These parameters can be modified runtime via RPC interface

# - see the documentation of 'cfg_rpc' module.

#

# Format: group.id = value 'desc' description

# Access: $sel(cfg_get.group.id) or @cfg_get.group.id

#

#!ifdef WITH_PSTN

# PSTN GW Routing

#

# - pstn.gw_ip: valid IP or hostname as string value, example:

# pstn.gw_ip = "10.0.0.101" desc "My PSTN GW Address"

#

# - by default is empty to avoid misrouting

pstn.gw_ip = "" desc "PSTN GW Address"

#!endif

#!ifdef WITH_VOICEMAIL

# VoiceMail Routing on offline, busy or no answer

#

# - by default Voicemail server IP is empty to avoid misrouting

voicemail.srv_ip = "" desc "VoiceMail IP Address"

voicemail.srv_port = "5060" desc "VoiceMail Port"

#!endif

#!ifdef WITH_ASTERISK

asterisk.bindip = "192.168.1.10" desc "Asterisk IP Address"

asterisk.bindport = "5060" desc "Asterisk Port"

kamailio.bindip = "192.168.1.40" desc "Kamailio IP Address"

kamailio.bindport = "5060" desc "Kamailio Port"

#!endif

####### Modules Section ########

# set paths to location of modules (to sources or installation folders)

#!ifdef WITH_SRCPATH

mpath="modules_k:modules"

#!else

mpath="/usr/local/lib/kamailio/modules_k/:/usr/local/lib/kamailio/modules/"

#!endif

#!ifdef WITH_MYSQL

loadmodule "db_mysql.so"

#!endif

loadmodule "mi_fifo.so"

loadmodule "kex.so"

loadmodule "tm.so"

loadmodule "tmx.so"

loadmodule "sl.so"

loadmodule "rr.so"

loadmodule "pv.so"

loadmodule "maxfwd.so"

loadmodule "usrloc.so"

loadmodule "registrar.so"

loadmodule "textops.so"

loadmodule "siputils.so"

loadmodule "xlog.so"

loadmodule "sanity.so"

loadmodule "ctl.so"

loadmodule "cfg_rpc.so"

loadmodule "mi_rpc.so"

loadmodule "acc.so"

loadmodule "dispatcher.so"

loadmodule "ipops.so"

loadmodule "sqlops.so"

#!ifdef WITH_AUTH

loadmodule "auth.so"

loadmodule "auth_db.so"

#!ifdef WITH_IPAUTH

loadmodule "permissions.so"

#!endif

#!endif

#!ifdef WITH_ALIASDB

loadmodule "alias_db.so"

#!endif

#!ifdef WITH_SPEEDDIAL

loadmodule "speeddial.so"

#!endif

#!ifdef WITH_MULTIDOMAIN

loadmodule "domain.so"

#!endif

#!ifdef WITH_PRESENCE

loadmodule "presence.so"

loadmodule "presence_xml.so"

#!endif

#!ifdef WITH_NAT

loadmodule "nathelper.so"

loadmodule "rtpproxy.so"

#!endif

#!ifdef WITH_TLS

loadmodule "tls.so"

#!endif

#!ifdef WITH_ANTIFLOOD

loadmodule "htable.so"

loadmodule "pike.so"

#!endif

#!ifdef WITH_XMLRPC

loadmodule "xmlrpc.so"

#!endif

#!ifdef WITH_DEBUG

loadmodule "debugger.so"

#!endif

#!ifdef WITH_ASTERISK

loadmodule "uac.so"

#!endif

# ----------------- setting module-specific parameters ---------------

# ----- mi_fifo params -----

modparam("mi_fifo", "fifo_name", "/tmp/kamailio_fifo")

# ----- tm params -----

# auto-discard branches from previous serial forking leg

modparam("tm", "failure_reply_mode", 3)

# default retransmission timeout: 30sec

modparam("tm", "fr_timer", 30000)

# default invite retransmission timeout after 1xx: 120sec

modparam("tm", "fr_inv_timer", 120000)

# ----- rr params -----

# add value to ;lr param to cope with most of the UAs

modparam("rr", "enable_full_lr", 1)

# do not append from tag to the RR (no need for this script)

#!ifdef WITH_ASTERISK

modparam("rr", "append_fromtag", 1)

#!else

modparam("rr", "append_fromtag", 0)

#!endif

# ----- registrar params -----

modparam("registrar", "method_filtering", 1)

/* uncomment the next line to disable parallel forking via location */

# modparam("registrar", "append_branches", 0)

/* uncomment the next line not to allow more than 10 contacts per AOR */

#modparam("registrar", "max_contacts", 10)

# max value for expires of registrations

modparam("registrar", "max_expires", 3600)

# set it to 1 to enable GRUU

modparam("registrar", "gruu_enabled", 0)

# ----- acc params -----

/* what special events should be accounted ? */

modparam("acc", "early_media", 0)

modparam("acc", "report_ack", 0)

modparam("acc", "report_cancels", 0)

/* by default ww do not adjust the direct of the sequential requests.

   if you enable this parameter, be sure the enable "append_fromtag"

   in "rr" module */

modparam("acc", "detect_direction", 0)

/* account triggers (flags) */

modparam("acc", "log_flag", FLT_ACC)

modparam("acc", "log_missed_flag", FLT_ACCMISSED)

modparam("acc", "log_extra",

"src_user=$fU;src_domain=$fd;src_ip=$si;"

"dst_ouser=$tU;dst_user=$rU;dst_domain=$rd")

modparam("acc", "failed_transaction_flag", FLT_ACCFAILED)

/* enhanced DB accounting */

#!ifdef WITH_ACCDB

modparam("acc", "db_flag", FLT_ACC)

modparam("acc", "db_missed_flag", FLT_ACCMISSED)

modparam("acc", "db_url", DBURL)

modparam("acc", "db_extra",

"src_user=$fU;src_domain=$fd;src_ip=$si;"

"dst_ouser=$tU;dst_user=$rU;dst_domain=$rd")

#!endif

# ----- usrloc params -----

/* enable DB persistency for location entries */

#!ifdef WITH_USRLOCDB

modparam("usrloc", "db_url", DBURL)

modparam("usrloc", "db_mode", 2)

modparam("usrloc", "use_domain", MULTIDOMAIN)

#!endif

# ----- auth_db params -----

#!ifdef WITH_AUTH

modparam("auth_db", "calculate_ha1", yes)

modparam("auth_db", "load_credentials", "")

#!ifdef WITH_ASTERISK

modparam("auth_db", "user_column", "username")

modparam("auth_db", "password_column", "secret")

modparam("auth_db", "db_url", DBASTURL)

modparam("auth_db", "version_table", 0)

#!else

modparam("auth_db", "db_url", DBURL)

modparam("auth_db", "password_column", "password")

modparam("auth_db", "use_domain", MULTIDOMAIN)

#!endif

# ----- permissions params -----

#!ifdef WITH_IPAUTH

modparam("permissions", "db_url", DBURL)

modparam("permissions", "db_mode", 1)

#!endif

#!endif

# ----- alias_db params -----

#!ifdef WITH_ALIASDB

modparam("alias_db", "db_url", DBURL)

modparam("alias_db", "use_domain", MULTIDOMAIN)

#!endif

# ----- speedial params -----

#!ifdef WITH_SPEEDDIAL

modparam("speeddial", "db_url", DBURL)

modparam("speeddial", "use_domain", MULTIDOMAIN)

#!endif

# ----- domain params -----

#!ifdef WITH_MULTIDOMAIN

modparam("domain", "db_url", DBURL)

# register callback to match myself condition with domains list

modparam("domain", "register_myself", 1)

#!endif

#!ifdef WITH_PRESENCE

# ----- presence params -----

modparam("presence", "db_url", DBURL)

# ----- presence_xml params -----

modparam("presence_xml", "db_url", DBURL)

modparam("presence_xml", "force_active", 1)

#!endif

#!ifdef WITH_NAT

# ----- rtpproxy params -----

modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:7722")

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

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

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

modparam("nathelper", "sipping_bflag", FLB_NATSIPPING)

modparam("nathelper", "sipping_from", "sip:pinger at kamailio.org")

# params needed for NAT traversal in other modules

modparam("nathelper|registrar", "received_avp", "$avp(RECEIVED)")

modparam("usrloc", "nat_bflag", FLB_NATB)

#!endif

#!ifdef WITH_TLS

# ----- tls params -----

modparam("tls", "config", "/usr/local/etc/kamailio/tls.cfg")

#!endif

#!ifdef WITH_ANTIFLOOD

# ----- pike params -----

modparam("pike", "sampling_time_unit", 2)

modparam("pike", "reqs_density_per_unit", 16)

modparam("pike", "remove_latency", 4)

# ----- htable params -----

# ip ban htable with autoexpire after 5 minutes

modparam("htable", "htable", "ipban=>size=8;autoexpire=300;")

#!endif

#!ifdef WITH_XMLRPC

# ----- xmlrpc params -----

modparam("xmlrpc", "route", "XMLRPC");

modparam("xmlrpc", "url_match", "^/RPC")

#!endif

#!ifdef WITH_DEBUG

# ----- debugger params -----

modparam("debugger", "cfgtrace", 1)

#!endif

# ------- Load-balancer params ------

modparam("dispatcher", "db_url","mysql://kamailio:kamailiorw@localhost
/kamailio")

modparam("dispatcher", "table_name", "dispatcher")

modparam("dispatcher", "setid_col", "setid")

modparam("dispatcher", "destination_col", "destination")

modparam("dispatcher", "flags_col", "flags")

modparam("dispatcher", "priority_col", "priority")

modparam("dispatcher", "force_dst", 1)

modparam("dispatcher", "flags", 2)

modparam("dispatcher", "dst_avp", "$avp(i:271)")

modparam("dispatcher", "grp_avp", "$avp(i:272)")

modparam("dispatcher", "cnt_avp", "$avp(i:273)")

modparam("dispatcher", "ds_ping_from", "sip:Kamailio-Proxy at 192.168.1.40")

modparam("dispatcher", "ds_ping_interval",15)

modparam("dispatcher", "ds_probing_threshhold", 3)

modparam("dispatcher", "ds_ping_method", "OPTIONS")

modparam("dispatcher", "ds_probing_mode", 1)

modparam("dispatcher", "ds_ping_reply_codes",
"class=2;code=403;code=404;code=484;class=3")

# ----- SQLops params -----

modparam("sqlops","sqlcon","ca=>mysql://kamailio:kamailiorw@localhost
/kamailio")

####### Routing Logic ########

# Main SIP request routing logic

# - processing of any incoming SIP request starts with this route

# - note: this is the same as route { ... }

request_route {

# per request initial checks

route(REQINIT);

# NAT detection

route(NATDETECT);

# handle requests within SIP dialogs

route(WITHINDLG);

### only initial requests (no To tag)

# CANCEL processing

if (is_method("CANCEL"))

{

if (t_check_trans())

t_relay();

exit;

}

t_check_trans();

# authentication

route(AUTH);

# record routing for dialog forming requests (in case they are routed)

# - remove preloaded route headers

remove_hf("Route");

if (is_method("INVITE|SUBSCRIBE"))

record_route();

# account only INVITEs

if (is_method("INVITE"))

{

setflag(FLT_ACC); # do accounting

}

# dispatch requests to foreign domains

route(SIPOUT);

### requests for my local domains

# handle presence related requests

route(PRESENCE);

# handle registrations

route(REGISTRAR);

if ($rU==$null)

{

# request with no Username in RURI

sl_send_reply("484","Address Incomplete");

exit;

}

# dispatch destinations to PSTN

route(PSTN);

# user location service

route(LOCATION);

route(RELAY);

}

route[RELAY] {

# enable additional event routes for forwarded requests

# - serial forking, RTP relaying handling, a.s.o.

if (is_method("INVITE|SUBSCRIBE")) {

t_on_branch("MANAGE_BRANCH");

t_on_reply("MANAGE_REPLY");

}

if (is_method("INVITE")) {

t_on_failure("MANAGE_FAILURE");

}

if (!t_relay()) {

sl_reply_error();

}

exit;

}

# Per SIP request initial checks

route[REQINIT] {

#!ifdef WITH_ANTIFLOOD

# flood dection from same IP and traffic ban for a while

# be sure you exclude checking trusted peers, such as pstn gateways

# - local host excluded (e.g., loop to self)

if(src_ip!=myself)

{

if($sht(ipban=>$si)!=$null)

{

# ip is already blocked

xdbg("request from blocked IP - $rm from $fu (IP:$si:$sp)\n");

exit;

}

if (!pike_check_req())

{

xlog("L_ALERT","ALERT: pike blocking $rm from $fu (IP:$si:$sp)\n");

$sht(ipban=>$si) = 1;

exit;

}

}

#!endif

if (!mf_process_maxfwd_header("10")) {

sl_send_reply("483","Too Many Hops");

exit;

}

if(!sanity_check("1511", "7"))

{

xlog("Malformed SIP message from $si:$sp\n");

exit;

}

}

# Handle requests within SIP dialogs

route[WITHINDLG] {

if (has_totag()) {

# sequential request withing a dialog should

# take the path determined by record-routing

if (loose_route()) {

if (is_method("BYE")) {

setflag(FLT_ACC); # do accounting ...

setflag(FLT_ACCFAILED); # ... even if the transaction fails

}

if ( is_method("ACK") ) {

# ACK is forwarded statelessy

route(NATMANAGE);

}

route(RELAY);

} else {

if (is_method("SUBSCRIBE") && uri == myself) {

# in-dialog subscribe requests

route(PRESENCE);

exit;

}

if ( is_method("ACK") ) {

if ( t_check_trans() ) {

# no 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;

}

}

# Handle SIP registrations

route[REGISTRAR] {

if (is_method("REGISTER"))

{

if(isflagset(FLT_NATS))

{

setbflag(FLB_NATB);

# uncomment next line to do SIP NAT pinging

setbflag(FLB_NATSIPPING);

}

if (!save("location"))

sl_reply_error();

        if (!(isflagset(FLT_NATS) || isbflagset(FLB_NATB))){

                return;

        }

                route(NATMANAGE);

#!ifdef WITH_ASTERISK

route(REGFWD);

#!endif

exit;

}

}

# USER location service

route[LOCATION] {

#!ifdef WITH_SPEEDIAL

# search for short dialing - 2-digit extension

if($rU=~"^[0-9][0-9]$")

if(sd_lookup("speed_dial"))

route(SIPOUT);

#!endif

#!ifdef WITH_ALIASDB

# search in DB-based aliases

if(alias_db_lookup("dbaliases"))

route(SIPOUT);

#!endif

#!ifdef WITH_ASTERISK

if(is_method("INVITE") && (!route(FROMASTERISK))) {

# if new call from out there - send to Asterisk

# - non-INVITE request are routed directly by Kamailio

# - traffic from Asterisk is routed also directy by Kamailio

route(TOASTERISK);

exit;

}

#!endif

$avp(oexten) = $rU;

if (!lookup("location")) {

$var(rc) = $rc;

route(TOVOICEMAIL);

t_newtran();

switch ($var(rc)) {

case -1:

case -3:

send_reply("404", "Not Found");

exit;

case -2:

send_reply("405", "Method Not Allowed");

exit;

}

}

# when routing via usrloc, log the missed calls also

if (is_method("INVITE"))

{

setflag(FLT_ACCMISSED);

}

}

# Presence server route

route[PRESENCE] {

if(!is_method("PUBLISH|SUBSCRIBE"))

return;

#!ifdef WITH_PRESENCE

if (!t_newtran())

{

sl_reply_error();

exit;

};

if(is_method("PUBLISH"))

{

handle_publish();

t_release();

}

else

if( is_method("SUBSCRIBE"))

{

handle_subscribe();

t_release();

}

exit;

#!endif

# if presence enabled, this part will not be executed

if (is_method("PUBLISH") || $rU==$null)

{

sl_send_reply("404", "Not here");

exit;

}

return;

}

# Authentication route

route[AUTH] {

#!ifdef WITH_AUTH

#!ifdef WITH_ASTERISK

# do not auth traffic from Asterisk - trusted!

if(route(FROMASTERISK))

return;

#!endif

#!ifdef WITH_IPAUTH

if((!is_method("REGISTER")) && allow_source_address())

{

# source IP allowed

return;

}

#!endif

if (is_method("REGISTER") || from_uri==myself)

{

# authenticate requests

#!ifdef WITH_ASTERISK

if (!auth_check("$fd", "cc_sip_buddies", "1")) {

#!else

if (!auth_check("$fd", "subscriber", "1")) {

#!endif

auth_challenge("$fd", "0");

exit;

}

# user authenticated - remove auth header

if(!is_method("REGISTER|PUBLISH"))

consume_credentials();

}

# if caller is not local subscriber, then check if it calls

# a local destination, otherwise deny, not an open relay here

if (from_uri!=myself && uri!=myself)

{

sl_send_reply("403","Not relaying");

exit;

}

#!endif

return;

}

# Caller NAT detection route

route[NATDETECT] {

#!ifdef WITH_NAT

force_rport();

if (nat_uac_test("19")) {

if (is_method("REGISTER")) {

fix_nated_register();

} else {

fix_nated_contact();

}

setflag(FLT_NATS);

}

#!endif

return;

}

# RTPProxy control

route[NATMANAGE] {

        if (is_method("INVITE")){

                sql_query("ca", "select destination from dispatcher where
destination like '%$dd%'","ra");

                if($dbr(ra=>rows)>0){

                        $avp(duip)=$(du{s.select,-2,:});

                        if (is_ip_rfc1918("$avp(duip)")) {

                                xlog("L_INFO", "Call is going to private
IPv4 Media Server Engage RTPProxy Now\n");

                                #rtpproxy_manage("crwie","192.168.1.40");

                                rtpproxy_manage("rwie");

                        }

                }

                else if(ds_is_from_list()){

                        if (is_ip_rfc1918("$si")) {

                                xlog("L_INFO", " Call is coming from a
private IPv4 Media Server Engage RTPProxy Now\n");

                                #rtpproxy_manage("crwei","192.168.1.80");

                                rtpproxy_manage("rwei");

                        }

                }else if(!ds_is_from_list()){

                          rtpproxy_manage("rwie");

                }

      }

}

# Routing to foreign domains

route[SIPOUT] {

if (!uri==myself)

{

append_hf("P-hint: outbound\r\n");

route(RELAY);

}

}

# PSTN GW routing

route[PSTN] {

#!ifdef WITH_PSTN

# check if PSTN GW IP is defined

if (strempty($sel(cfg_get.pstn.gw_ip))) {

xlog("SCRIPT: PSTN rotuing enabled but pstn.gw_ip not defined\n");

return;

}

# route to PSTN dialed numbers starting with '+' or '00'

#     (international format)

# - update the condition to match your dialing rules for PSTN routing

if(!($rU=~"^(\+|00)[1-9][0-9]{3,20}$"))

return;

# only local users allowed to call

if(from_uri!=myself) {

sl_send_reply("403", "Not Allowed");

exit;

}

$ru = "sip:" + $rU + "@" + $sel(cfg_get.pstn.gw_ip);

route(RELAY);

exit;

#!endif

return;

}

# XMLRPC routing

#!ifdef WITH_XMLRPC

route[XMLRPC] {

# allow XMLRPC from localhost

if ((method=="POST" || method=="GET")

&& (src_ip==127.0.0.1)) {

# close connection only for xmlrpclib user agents (there is a bug in

# xmlrpclib: it waits for EOF before interpreting the response).

if ($hdr(User-Agent) =~ "xmlrpclib")

set_reply_close();

set_reply_no_connect();

dispatch_rpc();

exit;

}

send_reply("403", "Forbidden");

exit;

}

#!endif

# route to voicemail server

route[TOVOICEMAIL] {

#!ifdef WITH_VOICEMAIL

if(!is_method("INVITE"))

return;

# check if VoiceMail server IP is defined

if (strempty($sel(cfg_get.voicemail.srv_ip))) {

xlog("SCRIPT: VoiceMail rotuing enabled but IP not defined\n");

return;

}

if($avp(oexten)==$null)

return;

$ru = "sip:" + $avp(oexten) + "@" + $sel(cfg_get.voicemail.srv_ip)

+ ":" + $sel(cfg_get.voicemail.srv_port);

route(RELAY);

exit;

#!endif

return;

}

# manage outgoing branches

branch_route[MANAGE_BRANCH] {

xdbg("new branch [$T_branch_idx] to $ru\n");

route(NATMANAGE);

}

# manage incoming replies

onreply_route[MANAGE_REPLY] {

xdbg("incoming reply\n");

if(status=~"[12][0-9][0-9]")

route(NATMANAGE);

}

# manage failure routing cases

failure_route[MANAGE_FAILURE] {

route(NATMANAGE);

if (t_is_canceled()) {

exit;

}

#!ifdef WITH_BLOCK3XX

# block call redirect based on 3xx replies.

if (t_check_status("3[0-9][0-9]")) {

t_reply("404","Not found");

exit;

}

#!endif

#!ifdef WITH_VOICEMAIL

# serial forking

# - route to voicemail on busy or no answer (timeout)

if (t_check_status("486|408")) {

route(TOVOICEMAIL);

exit;

}

#!endif

}

#!ifdef WITH_ASTERISK

# Test if coming from Asterisk

route[FROMASTERISK] {

   if(ds_is_from_list()){

         rtpproxy_manage("cawie");

  xlog("L_INFO","[$fU@$si:$sp]{$rm} Call from Media-Server Cluster\n");

        return 1;

   }

 return -1;

}

# Send to Asterisk

route[TOASTERISK] {

        ds_mark_dst("IP");

        if(!ds_select_dst("1", "9")) {

                sl_send_reply("500", "Service Unavailable");

                xlog("L_INFO","[$fU@$si:$sp]{$rm} No destinations available
for $rd \n");

                exit;

        }

        xlog("L_INFO","[$fU@$si:$sp]{$rm} From Outside World to Asterisk
Box $du\n");

        rtpproxy_manage("cawei");

 route(RELAY);

 exit;

}

# Forward REGISTER to Asterisk

route[REGFWD] {

if(!is_method("REGISTER"))

{

return;

}

$var(rip) = $sel(cfg_get.asterisk.bindip);

$uac_req(method)="REGISTER";

$uac_req(ruri)="sip:" + $var(rip) + ":" + $sel(cfg_get.asterisk.bindport);

$uac_req(furi)="sip:" + $au + "@" + $var(rip);

$uac_req(turi)="sip:" + $au + "@" + $var(rip);

$uac_req(hdrs)="Contact: <sip:" + $au + "@"

+ $sel(cfg_get.kamailio.bindip)

+ ":" + $sel(cfg_get.kamailio.bindport) + ">\r\n";

if($sel(contact.expires) != $null)

$uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $sel(contact.expires) +
"\r\n";

else

$uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $hdr(Expires) + "\r\n";

uac_req_send();

}

#!endif
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