[Serusers] SER-0.9 and MediaProxy-1.3 no sound

[Aaron W]

I have been playnig with SER for a few weeks now on an internal
network (all 192.168.X.X)  I now want to set up SER to handle NAT so
that I can give it a public IP and have my Cisco ATA188's and X-Lite
Softphones connect from anywhere.  I followed the guide/instructions
fron www.onsip.org  I ahve SER-0.9 and MediaProxy1.3 up and running. 
Using the same ser.cfg from onsip.org I thought things were good.  I
can call from one internal Cisco ATA to another, but there is no
sound.  During the call if I run sessions.py I see the call although
the from and To IP addesses are "XXX.XXX.XXX.XXX" and the status is
"Inactive".  I assume that is correct as it shouldn't use proxying for
an internal to internal call.  I am NOT using mediaidspather as both
SER and MediaProxy are on the same machine.  I want to get internal to
internal calling to work before I go back to testing NAT.  I am not
sure how to debug this further.  Any help would be great.  Below is my
ser.cfg, and mediaproxy.ini

SER.cfg
# file with Nat'ing setup
#
#set all Master Level Flags
#
debug=3
#fork=yes
#log_stderror=no
/*
fork=no
log_stderror=yes
*/
dns=no
rev_dns=no
fifo="/tmp/ser_fifo"
#
# Load all Modules
#
loadmodule "//lib/ser/modules/mysql.so"
loadmodule "//lib/ser/modules/sl.so"
loadmodule "//lib/ser/modules/tm.so"
loadmodule "//lib/ser/modules/rr.so"
loadmodule "//lib/ser/modules/maxfwd.so"
loadmodule "//lib/ser/modules/usrloc.so"
loadmodule "//lib/ser/modules/registrar.so"
loadmodule "//lib/ser/modules/auth.so"
loadmodule "//lib/ser/modules/auth_db.so"
loadmodule "//lib/ser/modules/uri.so"
loadmodule "//lib/ser/modules/uri_db.so"
#loadmodule "//lib/ser/modules/avpops.so"
loadmodule "//lib/ser/modules/textops.so"
loadmodule "//lib/ser/modules/domain.so"
loadmodule "//lib/ser/modules/mediaproxy.so"
loadmodule "//lib/ser/modules/nathelper.so"
#
#Set Module Parameters
#
modparam("auth_db", "calculate_ha1", 1)
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","/etc/ser/sip-clients")
modparam("mediaproxy","rtp_asymmetrics","/etc/ser/rtp-clients")
modparam("usrloc", "db_mode", 2)
modparam("registrar", "nat_flag", 6)
modparam("rr", "enable_full_lr", 1)
#
# begin Main Route Block
#
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;
	};
	
	# -----------------------------------------------------------------
	# Record Route Section
	# -----------------------------------------------------------------
	/*if (method=="INVITE" && client_nat_test("3")) {*/
	  if (method=="INVITE")  {
		#record_route_preset("192.168.122.135:5060;nat=yes"); # insert IP address
		#} 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") {
			if (client_nat_test("3") || search("^Route:.*;nat=yes")) {
				setflag(6);
			#	use_media_proxy();
			};
		};
		route(1);
		break;
	};

	# -----------------------------------------------------------------
	# Call Type Processing Section
	# -----------------------------------------------------------------
	if (uri==myself) {
		if (method=="INVITE") {
			route(3);
			break;
		} else if (method=="REGISTER") {
			route(2);
			break;
		};
		if (!lookup("location")) {
			if (uri=~"^sip:30") {
				rewritehost("162.168.191.1");
			};
			if (uri=~"^sip:83") {
				rewritehost("192.168.194.1");
			};
		};
		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("a.b.c ","subscriber")) {
		www_challenge("a.b.c ","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 (client_nat_test("3")) {
		setflag(7);
		force_rport();
		fix_nated_contact();
	};
	if (!lookup("location")) {
		if (uri=~"^sip:30") {
			rewritehost("162.168.191.1");
		};
		if (uri=~"^sip:83") {
			rewritehost("192.168.194.1");
		};
	};
	if (!proxy_authorize("a.b.c ","subscriber")) {
		proxy_challenge("a.b.c","0");
		break;
	} else if (!check_from()) {
		sl_send_reply("403", "Use From=ID");
	break;
	};
	consume_credentials();
	if (isflagset(6) || isflagset(7)) {
		use_media_proxy();
	};
	 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();
	};
}


Mediaproxy.ini
;
; Configuration file for MediaProxy
;

[Dispatcher]
;socket = /var/run/proxydispatcher.sock
;group = ser
;defaultProxy = /var/run/mediaproxy.sock

[MediaProxy]
;socket = /var/run/mediaproxy.sock
;group = ser
;listen = None
allow = any
;proxyIP = 10.0.0.1
;portRange = 35000:65000
;TOS = 0xb8
;idleTimeout = 60
;holdTimeout = 3600
;forceClose = 0
accounting = off

[Accounting]
user = dbuser
password = dbpass
host = dbhost
database = radius
table = radacct