Install Openser on EC2 Image

yum install unixODBC mysql mysql-server mysql-devel gcc bison flex

chkconfig mysqld on
service mysqld start
mysqladmin -u root password 'pass'

#to log into mysql server
mysql -u root -p
drop database test;

yum install mysql-connector-odbc
wget http://www.kamailio.org/pub/kamailio/latest/src/kamailio-1.5.1-tls_src.tar.gz
tar xvfz kamailio-1.5.1-tls_src.tar.gz
cd kamailio-1.5.1
edit Makefile and uncomment Tls=1 to compile with tls
make sure openssl, openssl-devel are installed (ec2 already are)
from http://www.kamailio.org/docs/tls-devel.html#id2470286

To enable the server_name (aka SNI) TLS extension an openssl version with TLS extension support must be installed, e.g. openssl 0.9.9 or openssl 0.9.8h. When compiling OpenSSL, run "./configure --enable-tlsext".

1.4.1. Dependencies of external libraries

Kamailio TLS support requires OpenSSL from http://www.openssl.org. For FreeBSD, you can either use the system OpenSSL or OpenSSL from the ports system. In Linux, it's distributed in the following packages:

• 
  openssl or libssl >= 0.9.6
  
• 
  openssl-dev or libssl-dev
  

make all include_modules="db_mysql"
make install include_modules="db_mysql"

nano /user/local/etc/kamailio/kamctlrc
uncomment SIP_DOMAIN=kamailio.local
uncomment DBENGINE=MYSQL
uncomment DBHOST=localhost

/usr/local/sbin/kamdbctl create
This will create a database named 'openser' and will add a Mysql user 'openser' with full access to it. The default password is 'openserrw', do change it before (by editing /usr/local/etc/kamctlrc) or immediately after you create the database.


nano /etc/kamailio/kamailio.cfg and uncomment the following lines set mydomain.com to your domain (kamailio.local):
loadmodule "db_mysql.so"

loadmodule "auth.so"
loadmodule "auth_db.so"

modparam("usrloc", "db_mode", 2)
modparam("usrloc", "db_url", "mysql://openser:openserrw@localhost/openser")

modparam("auth_db", "calculate_ha1", yes)
modparam("auth_db", "password_column", "password")
modparam("auth_db", "db_url", "mysql://openser:openserrw@localhost/openser")
modparam("auth_db", "load_credentials", "")

if (!www_authorize("mydomain.com", "subscriber"))
{
www_challenge("mydomain.com", "0");
exit;
}

if (!check_to())
{
sl_send_reply("403","Forbidden auth ID");
exit;
}


In the file /etc/odbcinst.ini  you must add:

# Driver from the MyODBC package
# Setup from the unixODBC package
[MySQL]
Description     = ODBC for MySQL
Driver          = /usr/lib/libmyodbc3.so
Setup           = /usr/lib/libodbcmyS.so
FileUsage = 1



kamctl start



cd /usr/local/src
wget http://b2bua.org/chrome/site/rtpproxy-1.2.0.tar.gz
tar -xf rtpproxy-1.2.0.tar.gz
cd rtpproxy-1.2.0
./configure
make
make install

adduser rtpproxy -d /home/rtpproxy -s /bin/false


to start where 174.129.12.103 is the ip of the server
rtpproxy -l 174.129.12.103 -s udp:localhost:7722 -u rtpproxy

to stop
pid= cat "/var/run/rtpproxy.pid"  2>/dev/null
kill pid


Did you check if rtpproxy is running

if it is running try to use force_sock function as shown below
modparam("nathelper", "force_socket", "udp:localhost:8899")

another option to run ur RTP proxy is

rtpproxy -F -l your-public-ip  -s udp:localhost:port-no
rtpproxy -F -l 174.129.12.103  -s udp:127.0.0.1:7722


if u use the above command to start rtp proxy. then change ur cfg file like
this
modparam("nathelper", "rtpproxy_sock", "udp:127.0.0.1:port-no")
modparam("nathelper", "force_socket", "udp:localhost:port-no")




yum install ngrep
ngrep -d any port 5060