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

debug=6
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

alias="domain.com"

listen=udp:87.71.230.41:5060 # CUSTOMIZE ME

disable_tcp=yes

disable_tls=yes

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

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

#### SIGNALING module
loadmodule "signaling.so"

#### StateLess module
loadmodule "sl.so"

#### Transaction Module
loadmodule "tm.so"
modparam("tm", "fr_timeout", 5)
modparam("tm", "fr_inv_timeout", 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"



#### USeR LOCation module
loadmodule "usrloc.so"
modparam("usrloc", "nat_bflag", "NAT")
modparam("usrloc", "db_mode",   2)
modparam("usrloc", "db_url",
	"mysql://root:password@87.71.230.41/name") # CUSTOMIZE ME


#### REGISTRAR module
loadmodule "registrar.so"
modparam("registrar", "tcp_persistent_flag", "TCP_PERSISTENT")
modparam("registrar", "received_avp", "$avp(received_nh)")
/* uncomment the next line not to allow more than 10 contacts per AOR */
#modparam("registrar", "max_contacts", 10)

#### 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://root:password@87.71.230.41/name") # CUSTOMIZE ME




#### ALIAS module
loadmodule "alias_db.so"
modparam("alias_db", "db_url",
	"mysql://root:password@87.71.230.41/name") # CUSTOMIZE ME






#### DIALOG module
loadmodule "dialog.so"
modparam("dialog", "dlg_match_mode", 1)
modparam("dialog", "default_timeout", 21600)  # 6 hours timeout
modparam("dialog", "db_mode", 2)
modparam("dialog", "db_url",
	"mysql://root:password@87.71.230.41/name") # CUSTOMIZE ME


####  NAT modules
loadmodule "nathelper.so"
modparam("nathelper", "natping_interval", 10)
modparam("nathelper", "ping_nated_only", 1)
modparam("nathelper", "received_avp", "$avp(received_nh)")

loadmodule "rtpproxy.so"
modparam("rtpproxy", "rtpproxy_sock", "udp:87.71.230.41:7890") # CUSTOMIZE ME








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

# main request routing logic

route{
	force_rport();
	if (nat_uac_test("23")) {
		if (is_method("REGISTER")) {
			fix_nated_register();
			setbflag(NAT);
		} else {
			fix_nated_contact();
			setflag(NAT);
		}
	}


	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()) {

			# validate the sequential request against dialog
			if ( $DLG_status!=NULL && !validate_dialog() ) {
				xlog("In-Dialog $rm from $si (callid=$ci) is not valid according to dialog\n");
				## exit;
			}

			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")) {

		# create dialog with timeout
		if ( !create_dialog("B") ) {
			send_reply("500","Internal Server Error");
			exit;
		}

		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"))
	{


		if (   0 ) 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;
	}


	# apply DB based aliases
	alias_db_lookup("dbaliases");





	# 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;
	##}


}



local_route {
	if (is_method("BYE") && $DLG_dir=="UPSTREAM") {

		acc_db_request("200 Dialog Timeout", "acc");

	}
}