[Serusers] SER/MediaProxy Audio issues - NEED HELP

Marc Rys m.rys at rystec.com
Mon Jul 24 23:19:27 CEST 2006


Hello All,

I’m fairly new to SER / Mediaproxy.  I’ve been following the examples from
onsip.org using the latest Getting started docs. 

At this point I’m testing with two Grandstream Handytone 486 UA’s.  One
NAT'd, one not.

Please check out the following URL to see a diagram explaining my setup.
http://marc.ivalve.net/ser/gif_1.gif

“UA-2” cannot hear anything spoken from “UA-1”, although I can hear what is
said from “UA-2” on “UA-1”, but not vice versa.  2-way voice is not
happening.

Both UA’s do register to SER.  The NAT’d UA couldn’t register until I got
Mediaproxy installed.  Mediaproxy does appear to start with out errors.
Below are my Ser.cfg and Mediaproxy.ini.

Please Help.

Marc



Ser.cfg
--------------------------------------------------------------
#5a-mysql-mediaproxy-ser.cfg
debug=3
fork=yes
log_stderror=no

listen=XXX.XXX.XXX.235       # INSERT YOUR IP ADDRESS HERE
port=5060
children=4

dns=no
rev_dns=no
fifo="/tmp/ser_fifo"
fifo_db_url="mysql://ser:heslo@localhost/ser"


loadmodule "/usr/lib/ser/modules/mysql.so"
loadmodule "/usr/lib/ser/modules/sl.so"
loadmodule "/usr/lib/ser/modules/tm.so"
loadmodule "/usr/lib/ser/modules/rr.so"
loadmodule "/usr/lib/ser/modules/maxfwd.so"
loadmodule "/usr/lib/ser/modules/usrloc.so"
loadmodule "/usr/lib/ser/modules/registrar.so"
loadmodule "/usr/lib/ser/modules/auth.so"
loadmodule "/usr/lib/ser/modules/auth_db.so"
loadmodule "/usr/lib/ser/modules/uri.so"
loadmodule "/usr/lib/ser/modules/uri_db.so"
loadmodule "/usr/lib/ser/modules/domain.so"
loadmodule "/usr/lib/ser/modules/mediaproxy.so"
loadmodule "/usr/lib/ser/modules/nathelper.so"
loadmodule "/usr/lib/ser/modules/textops.so"

modparam("auth_db|uri_db|usrloc", "db_url",
"mysql://ser:heslo@localhost/ser")
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)

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")) {
		# INSERT YOUR IP ADDRESS HERE
		record_route_preset("XXX.XXX.XXX.235:5060;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 ((method=="INVITE" || method=="REFER") && !has_totag()) {
		sl_send_reply("403", "Forbidden");
		break;
	};

	if (method=="INVITE") {

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

	consume_credentials();

	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=="ACK") {
		route(1);
		break;
	} else if (method=="CANCEL") {
		route(3);
		break;
	} else if (method=="INVITE") {
		route(3);
		break;
	} else if (method=="REGISTER") {
		route(2);
		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 (client_nat_test("3")) {
		setflag(7);
		force_rport();
		fix_nated_contact();
	};
   
	if (!proxy_authorize("","subscriber")) {
		proxy_challenge("","0");
		break;
	} else if (!check_from()) {
		sl_send_reply("403", "Use From=ID");
		break;
	};

	consume_credentials();

	lookup("aliases");
	if (uri!=myself) {
		route(4); 
		route(1);
		break;
	};
  
	if (!lookup("location")) {
		sl_send_reply("404", "User Not Found");
		break;
	};

	route(4);
	route(1);
}

route[4] {

	#-----------------------------------------------------------------
	# NAT Traversal Section
	# -----------------------------------------------------------------
	if (isflagset(6) || isflagset(7)) {
		if (isflagset(8)) {
			setflag(8);
			use_media_proxy();
		};
	};
}

	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
------------------------------------------------------------

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

[MediaProxy]
start = yes
socket = /var/run/mediaproxy.sock
group = ser
listen = None
allow = None
proxyIP = XXX.XXX.XXX.235        # This is where OpenSER installed
;portRange = 2000:8000        # These values are set same in ATA's configs
for RTP Range
TOS = 0xb8
idleTimeout = 60
holdTimeout = 180
forceClose = 0
accounting = off

[Accounting]
user = root
password =
host = localhost
database = ser
table = acc

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