#debug=3         # debug level (cmd line: -dddddddddd)
fork=yes
#memlog=5 # memory debug log level
#log_facility=LOG_LOCAL0 # sets the facility used for logging (see syslog(3))
log_stderror=yes
check_via=no    # (cmd. line: -v)
dns=no           # (cmd. line: -r)
rev_dns=no      # (cmd. line: -R)
listen=192.168.1.171
port=5060
#children=4
fifo="/tmp/ser_fifo"
fifo_db_url="mysql://username:password@localhost/database"
user=nobody
group=nobody
fifo_user=root # owner of the ser fifo
fifo_group=root
fifo_mode=0777 # fifo's permissions
#disable_core=yes #disables core dumping
#open_fd_limit=1024 # sets the open file descriptors limit
#mhomed=yes  # usefull for multihomed hosts, small performance penalty
#disable_tcp=yes 
tcp_accept_aliases=yes # accepts the tcp alias via option (see NEWS)
alias="proxy.mydomain.com"

# ------------------ module loading ----------------------------------

# Uncomment this if you want to use SQL database
loadmodule "/usr/local/lib/ser/modules/mysql.so"
loadmodule "/usr/local/lib/ser/modules/sl.so"
loadmodule "/usr/local/lib/ser/modules/tm.so"
loadmodule "/usr/local/lib/ser/modules/rr.so"
loadmodule "/usr/local/lib/ser/modules/maxfwd.so"
loadmodule "/usr/local/lib/ser/modules/usrloc.so"
loadmodule "/usr/local/lib/ser/modules/registrar.so"
loadmodule "/usr/local/lib/ser/modules/uri.so"
loadmodule "/usr/local/lib/ser/modules/uri_db.so"
loadmodule "/usr/local/lib/ser/modules/avpops.so"
loadmodule "/usr/local/lib/ser/modules/textops.so"
loadmodule "/usr/local/lib/ser/modules/mediaproxy.so"
loadmodule "/usr/local/lib/ser/modules/nathelper.so"
loadmodule "/usr/local/lib/ser/modules/domain.so"
loadmodule "/usr/local/lib/ser/modules/auth.so"
loadmodule "/usr/local/lib/ser/modules/auth_db.so"
loadmodule "/usr/local/lib/ser/modules/acc.so"
loadmodule "/usr/local/lib/ser/modules/exec.so"
loadmodule "/usr/local/lib/ser/modules/permissions.so"
loadmodule "/usr/local/lib/ser/modules/group.so"

modparam("group", "db_url","mysql://username:password@localhost/database")

modparam("auth_db|permissions|uri_db|usrloc", "db_url", "mysql://username:password@localhost/database")

modparam("acc", "db_url", "mysql://username:password@localhost/database")
modparam("acc", "log_level", 1)
modparam("acc", "log_flag", 1)
modparam("acc", "log_fmt", "cdfimorstup")
modparam("acc", "db_flag", 1)
modparam("acc", "log_missed_flag", 2)
modparam("acc", "db_missed_flag", 2)
modparam("acc", "report_cancels", 1)

modparam("auth_db", "calculate_ha1", yes)
modparam("auth_db", "user_column", "username")
modparam("auth_db", "password_column", "password")

modparam("nathelper", "rtpproxy_disable", 1)
modparam("nathelper", "natping_interval", 0)

modparam("mediaproxy","natping_interval", 30)
modparam("mediaproxy","mediaproxy_socket", "/var/run/mediaproxy.sock")
modparam("mediaproxy","sip_asymmetrics","/usr/local/etc/ser/sip-asymmetric-clients")
modparam("mediaproxy","rtp_asymmetrics","/usr/local/etc/ser/rtp-asymmetric-clients")

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

modparam("registrar", "nat_flag", 6)

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

modparam("tm", "fr_inv_timer", 27)
modparam("tm", "fr_inv_timer_avp", "inv_timeout")

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

modparam("avpops", "avp_url", "mysql://username:password@localhost/database")
modparam("avpops", "avp_table", "usr_preferences")

route {

	# -----------------------------------------------------------------
	# Sanity Check Section
	# -----------------------------------------------------------------
	if (!mf_process_maxfwd_header("10")) {
		sl_send_reply("483", "Too Many Hops");
		break;
	};

	if (msg:len > max_len) {
		sl_send_reply("513", "Message Overflow");
		break;
	};

if (method=="INVITE" || method=="BYE" || method=="ACK") {
setflag(1);
};


	# -----------------------------------------------------------------
	# Record Route Section
	# -----------------------------------------------------------------
	if (method=="INVITE" && client_nat_test("3")) {
		# INSERT YOUR IP ADDRESS HERE
		record_route_preset("192.168.1.171:5060;nat=yes");
	} else if (method!="REGISTER") {	
		record_route();	
	};

	# -----------------------------------------------------------------
	# Call Tear Down Section
	# -----------------------------------------------------------------
	if (method=="BYE" || method=="CANCEL") {
		end_media_session();
	};

	# -----------------------------------------------------------------
	# Loose Route Section
	# -----------------------------------------------------------------
	if (loose_route()) {

		if (has_totag() && (method=="INVITE" || method=="ACK")) {

			if (client_nat_test("3")||search("^Route:.*nat=yes")){
				setflag(6);
				use_media_proxy();
			};
		};

		route(1);
		break;
	};

	# -----------------------------------------------------------------
	# Call Type Processing Section
	# -----------------------------------------------------------------
	if (uri!=myself) {
			route(4);
			route(1);
			break;
	};

	  if (method=="CANCEL") {
		route(1);
		break;
	} else if (method=="INVITE") {
		route(3);
		break;
	} else 	if (method=="REGISTER") {
		route(2);
		break;
    } else if (method=="ACK"){
    route(1);
    break;
    };
	lookup("aliases");
	if (uri!=myself) {
		route(4);
		route(1);
		break;
	};

	if (!lookup("location")) {
		sl_send_reply("404", "User Not Found");
		break;
	};

	route(1);
}

route[1] {

	# -----------------------------------------------------------------
	# Default Message Handler
	# -----------------------------------------------------------------

	t_on_reply("1");

	if (!t_relay()) {

		if (method=="INVITE" || method=="ACK") {
			end_media_session();
		};

		sl_reply_error();
	};
}

route[2] {

	# -----------------------------------------------------------------
	# REGISTER Message Handler
	# -----------------------------------------------------------------

	sl_send_reply("100", "Trying");

	if (!search("^Contact:[ ]*\*") && client_nat_test("7")) {
		setflag(6);
		fix_nated_register();
		force_rport();
	};

	if (!www_authorize("","subscriber")) {
		www_challenge("","0");
		break;
	};

	if (!check_to()) {
		sl_send_reply("401", "Unauthorized");
		break;
	};

	consume_credentials();

	if (!save("location")) {
		sl_reply_error();
	};
}

route[3] {

	# -----------------------------------------------------------------
	# INVITE Message Handler
	# -----------------------------------------------------------------

	#if (!allow_trusted()) {
#    if (method=="INVITE" && !allow_trusted()) {


#		if (!proxy_authorize("","subscribe")) {
#			proxy_challenge("","0");
#			break;
#		} else if (!check_from()) {
#			sl_send_reply("403", "Use From=ID");
#			break;
#		};

#	consume_credentials();
#	};

	if (client_nat_test("3")) {
	setflag(7);
	force_rport();
	fix_nated_contact();
	};

	lookup("aliases");
	if (uri!=myself) {
	route(4);
	route(1);
	break;
	};

	if (uri=~"^sip:0011[0-9]*@") {	# International PSTN calls to asterisk
      strip(4);
	setflag(6);
      route(4);
	route(5);
	break;
	};

	if (!lookup("location")) {

 if (uri=~"^sip:[0-9]{10}@") {   # Trying to send Local
    setflag(6);
    route(4);
    route(5);
    acc_db_request("Missed Call", "missed_calls");
    break;
    };
    
    if (uri=~"^sip:[0-9]{3}@") {   # Trying to send voicemail main to Asterisk
    setflag(6);
    route(4);
    route(5); 
    break;
    };
	
    if (uri=~"^sip:[0-9]{6}@") {   # Trying to send PSTN to Asterisk
    setflag(6);
    route(4);
    route(5); 
    break;
    };

		sl_send_reply("404", "User Not Found");
		break;
	};

	if (avp_db_load("$ruri/username", "s:fwdbusy")) {
		if (!avp_check("s:fwdbusy", "eq/$ruri/i")) {
			setflag(26);
           };
	};

	if (avp_db_load("$ruri/username", "s:fwdnoanswer")) {
		if (!avp_check("s:fwdnoanswer", "eq/$ruri/i")) {
            setflag(27);
           };
	};

	if (avp_db_load("$ruri/username", "s:callfwd")) {
		setflag(22);
		avp_pushto("$ruri", "s:callfwd");
		## route(4); #inserted for incoming did RTP support
		route(6);
		break;
		};
	
	t_on_failure("1");
	setflag(6);
	route(4);
	route(1);
}

route[4] {

	# -----------------------------------------------------------------
	# NAT Traversal Section
	# -----------------------------------------------------------------

	if (isflagset(6) || isflagset(7)) {
		if (!isflagset(8)) {
			setflag(8);
			use_media_proxy();
		};
	};
}

route[5] {

	# -----------------------------------------------------------------
	# PSTN Handler
	# -----------------------------------------------------------------

	rewritehost("192.168.1.156"); # INSERT YOUR PSTN GATEWAY IP ADDRESS

	avp_write("i:45", "inv_timeout");

	t_on_failure("1");

	route(4);
	route(1);
}

route[6] {

	# ------------------------------------------------------------------------
	# Call Forwarding Reply Route Handler
	#
	# This must be done as a route block because sl_send_reply() cannot be
	# called from the failure_route block
	# ------------------------------------------------------------------------

	
	lookup("aliases");
	if (uri!=myself) {

		if (!isflagset(22)) {
			append_branch();
		};

		route(4);
		route(1);
		break;
	};

	if (!lookup("location")) {

		if (uri=~"^sip:[0-9]{10}@") {
			route(4);
			route(1);
			break;
		};

		sl_send_reply("404", "User Not Found");
	};

	route(4);
	route(1);
}

onreply_route[1] {

	if ((isflagset(6) || isflagset(7)) && 
	    (status=~"(180)|(183)|2[0-9][0-9]")) {

		if (!search("^Content-Length:[ ]*0")) {
			use_media_proxy();
		};
	};

	if (client_nat_test("1")) {
		fix_nated_contact();
	};
}

failure_route[1] {
    acc_db_request("Missed Call", "missed_calls");
    revert_uri();
    	rewritehostport("192.168.1.156:5060");
	append_branch(); 
	t_relay();
	break();


	if (t_check_status("487")) {
		break;
	};

	if (isflagset(26) && t_check_status("486")) {
		if (avp_pushto("$ruri", "s:fwdbusy")) {
			avp_delete("s:fwdbusy");
			resetflag(26);
			route(6);
			break;
		};
	};

	if (isflagset(27) && t_check_status("408")) {
		if (avp_pushto("$ruri", "s:fwdnoanswer")) {
			avp_delete("s:fwdnoanswer");
			resetflag(27);
		    route(6);
			break;
		};
	};

	end_media_session();
}

route[7] {

	# -----------------------------------------------------------------
	# 
	# -----------------------------------------------------------------

	rewritehost("192.168.1.156"); # INSERT YOUR PSTN GATEWAY IP ADDRESS

	avp_write("i:45", "inv_timeout");

	t_on_failure("1");

	route(4);
	route(1);
}