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

debug=3
log_stderror=no
log_facility=LOG_LOCAL0

fork=yes
children=4

/* uncomment the following lines to enable debugging */
#debug=6
#fork=no
#log_stderror=yes

/* uncomment the next line to enable the auto temporary blacklisting of
   not available destinations (default disabled) */
#disable_dns_blacklist=no

/* uncomment the next line to enable IPv6 lookup after IPv4 dns
   lookup failures (default disabled) */
#dns_try_ipv6=yes

/* comment the next line to enable the auto discovery of local aliases
   based on revers DNS on IPs */
auto_aliases=no


listen=udp:0.0.0.0:5060   # CUSTOMIZE ME



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

#set module path
mpath="/usr/lib64/opensips/modules/"



#### 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)

#### MYSQL module
loadmodule "db_mysql.so"

#### AVPOPS module
loadmodule "avpops.so"

#### ACCounting module
loadmodule "acc.so"
/* what special events should be accounted ? */
modparam("acc", "early_media", 0)
modparam("acc", "report_cancels", 0)
/* by default we 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)
modparam("acc", "failed_transaction_flag", "ACC_FAILED")
/* account triggers (flags) */
modparam("acc", "db_flag", "ACC_DO")
modparam("acc", "db_missed_flag", "ACC_MISSED")
modparam("acc", "db_url",
	"mysql://willian:tecno2212@10.1.1.249/opensips") # CUSTOMIZE ME




#### DISPATCHER module
loadmodule "dispatcher.so"
modparam("dispatcher", "db_url",
	"mysql://willian:tecno2212@10.1.1.249/opensips") # CUSTOMIZE ME
modparam("dispatcher", "ds_ping_method", "OPTIONS")
modparam("dispatcher", "ds_probing_mode", 0)
modparam("dispatcher", "flags", 2)

modparam("dispatcher", "ds_ping_interval", 30)





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


# main request routing logic

route{

	if (!mf_process_maxfwd_header("10")) {
		sl_send_reply("483","Too Many Hops");
		exit;
	}

	if (has_totag()) {
		# sequential request withing 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();
			}

			# 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;
	}

	#### INITIAL REQUESTS

	# CANCEL processing
	if (is_method("CANCEL")) {
		if (t_check_trans())
			t_relay();
		exit;
	} else if (!is_method("INVITE")) {
		send_reply("405","Method Not Allowed");
		exit;
	}

	if ($rU==NULL) {
		# request with no Username in RURI
		sl_send_reply("484","Address Incomplete");
		exit;
	}

	t_check_trans();

	# 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
	record_route();

	setflag(ACC_DO); # do accounting


	if ( !ds_select_dst("1","4") ) {

		send_reply("500","No Destination available");
		exit;
	}


	t_on_failure("GW_FAILOVER");

	route(RELAY);
}


route[RELAY] {
	if (!t_relay()) {
		sl_reply_error();
	};
	exit;
}


failure_route[GW_FAILOVER] {
	if (t_was_cancelled()) {
		exit;
	}

	# failure detection with redirect to next available trunk
	if (t_check_status("(408)|([56][0-9][0-9])")) {
		xlog("Failed trunk $rd/$du detected \n");


		if ( ds_next_dst() ) {

			t_on_failure("GW_FAILOVER");
			t_relay();
			exit;
		}

		send_reply("500","All GW are down");
	}
}