OpenSER And Mediaproxy

#  
# sample config file to be used with MediaProxy
#


# --- global parameters
#
listen=udp:sip.example.com:5060
fifo="/tmp/openser_fifo
alias="example.com"
alias="voip.example.com"

# --- load modules
mpath="/usr/local/lib/openser/modules/"
loadmodule "sl.so"
loadmodule "tm.so"
loadmodule "rr.so"
loadmodule "maxfwd.so"
loadmodule "usrloc.so"
loadmodule "registrar.so"
loadmodule "textops.so"
loadmodule "domain.so"
loadmodule "mediaproxy.so"
loadmodule "xlog.so"


# --- module params
# rr
# add value to ;lr param to make some broken UAs happy
modparam("rr", "enable_full_lr", 1)

# mediaproxy
modparam("mediaproxy", "mediaproxy_socket", "/var/run/proxydispatcher.sock")
modparam("mediaproxy", "natping_interval", 60)
modparam("registrar", "nat_flag", 2)

# request routing logic
route 
{
	# sanity checks
	if (!mf_process_maxfwd_header("10")) 
	{
		sl_send_reply("483","Too Many Hops");
		exit;
	}
	if (msg:len >= max_len) 
	{
		sl_send_reply("513", "Message too big");
		exit;
	}

	# apply loose (normal) routing rules
	if(!is_method("REGISTER"))
		if(loose_route())
			route(1);

	# NAT test
	if (client_nat_test("3") && !is_present_hf("Route")) 
	{
		setflag(2); # flag for NAT
		force_rport();
		fix_contact();
		append_hf("P-hint: NAT\r\n"); 
	}

	# outbound routing if not for me
	if (uri != myself) 
	{
		route(1);
		exit;
	}

	# Registration
	if (is_method("REGISTER")) 
	{
		save("location"); # no-auth registration
		exit;
	}

	if (is_method("INVITE"))
	{
		# enable Record-Route
		record_route();

		# Is this to one of our numbers
		if (lookup("location")) 
		{
			append_hf("P-hint: userloc applied\r\n");
		} else {
			sl_send_reply("404","Not found");
		}
	}
	route(1);
}


route[1] 
{
	if (isflagset(2))
	{
		if (is_method("INVITE"))
		{
			t_on_reply("1");
			t_on_failure("1");
			use_media_proxy();
		} else if (is_method("BYE|CANCEL")) {
			end_media_session();
		}
	}

	# send it out now; use stateful forwarding as it works reliably
	# even for UDP2TCP
	if (!t_relay()) 
	{
		sl_reply_error();
	}
	exit;
}

onreply_route[1]
{
	if (status =~ "(183)|(2[0-9][0-9])")
	{
		if (client_nat_test("1"))
		{
			fix_contact();
		}
		use_media_proxy();
	}
}

failure_route[1]
{
	end_media_session();
}