[SR-Users] Re: Kamailio Asterisk Realtime integration

Hello,

the best it would be to configure Asterisk to trust traffic from Kamailio based on source IP, not to challenge with 401/407 for authentication, if Kamailio does the authentication already.

Otherwise, for uac module, you can set username and password for the local requests:

- https://www.kamailio.org/wikidocs/cookbooks/6.0.x/pseudovariables/#uac_reqke...

Cheers, Daniel

On 02.05.25 14:11, cedric--- via sr-users wrote:

Hello, I'm trying to use Kamailio as proxy for Asterisk. I follow this tutorial https://kb.asipto.com/asterisk:realtime:kamailio-4.0.x-asterisk-11.3.0-astdb I maked some updates to replace old libs and old elements related to db table and fields to use the pjsip table (ps_auths) and fields (username, password). I configured Asterisk Realtime by following the Asterisk documentation (extconfig.conf, sorcery.conf, rec_odbc.conf etc...).

I'm lock at this step : The registering is handle correctly by Kamailio and forwarded to Asterisk, but asterisk respond with a "401" error and want to get a digest auth...

Bellow, my kamailio config file:

#!KAMAILIO

#!define WITH_MYSQL
#!define WITH_AUTH
#!define WITH_USRLOCDB
#!define WITH_ASTERISK
#!define WITH_NAT
#!define WITH_DEBUG

#
# 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@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://asterisk:asterisk_password@localhost/asterisk"
#!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:192.168.1.2:5060

/* 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

####### 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 = "192.168.1.2" desc "Asterisk IP Address"
asterisk.bindport = "5080" desc "Asterisk Port"
kamailio.bindip = "192.168.1.2" 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 "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 "acc.so"
loadmodule "jsonrpcs.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 ---------------


# ----- jsonrpcs fifo params -----
modparam("jsonrpcs", "fifo_name", "/run/kamailio/kamailio_rpc.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", "password")
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:127.0.0.1:22222")

# ----- 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@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

####### 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();

#!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] {

   # 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;
   }

#!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("$fd", "ps_auths", "1")) {
#!else
   	if (!auth_check("$fd", "subscriber", "1")) {
#!endif
   		auth_challenge("$fd", "0");
   		exit;
   	}
   	# user authenticated - remove auth header
   	if(!is_method("REGISTER|PUBLISH"))
   		consume_credentials();
   }
#!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] {
#!ifdef WITH_NAT
   if (is_request()) {
   	if(has_totag()) {
   		if(check_route_param("nat=yes")) {
   			setbflag(FLB_NATB);
   		}
   	}
   }
   if (!(isflagset(FLT_NATS) || isbflagset(FLB_NATB)))
   	return;

   rtpproxy_manage();

   if (is_request()) {
   	if (!has_totag()) {
   		add_rr_param(";nat=yes");
   	}
   }
   if (is_reply()) {
   	if(isbflagset(FLB_NATB)) {
   		fix_nated_contact();
   	}
   }
#!endif
   return;
}

# 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($si==$sel(cfg_get.asterisk.bindip)
   		&& $sp==$sel(cfg_get.asterisk.bindport))
   	return 1;
   return -1;
}

# Send to Asterisk
route[TOASTERISK] {
   $du = "sip:" + $sel(cfg_get.asterisk.bindip) + ":"
   		+ $sel(cfg_get.asterisk.bindport);
   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

Also, I'm not sure about the configuration to add into asterisk, like a kamailio registration block or endpoint block, and... probably others...

Thanks to help. Flywall. __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions -- sr-users@lists.kamailio.org To unsubscribe send an email to sr-users-leave@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender!