RTP Engine Installation

1. Remove RTPProxy if it is installed by below command.
   sudo apt-get remove rtpproxy
2. Now Clone the RTPengine project from GitHub. To clone the RTPengine use below command.

• sudo apt-get install git
• sudo git clone https://github.com/sipwise/rtpengine.git rtpengine

2. Then enter into rtpengine directory.
   cd rtpengine
3. Remove any NGCP dependencies.
   sudo ./debian/flavors/no_ngcp
4. Then we need to run the dpkg-buildpackage command. This will give you list of dependencies. Install each package one by one.

• sudo dpkg-buildpackage
• sudo apt-get install debhelper
• sudo apt-get install iptables-dev
• sudo apt-get install libcurl4-openssl-dev
• sudo apt-get install libglib2.0-dev
• sudo apt-get update
• sudo apt-get install libxmlrpc-core-c3-dev
• sudo apt-get install libhiredis-dev markdown
• sudo apt-get install build-essential:native

5. After installing each dependecies packages build the packages by running below command. This will build RTPengine once again.
   sudo dpkg-buildpackage
6. Success! Build Completed, Few .deb files are created in the parent directory(use cd .. ). Now Install those deb files.

• sudo dpkg -i ngcp-rtpengine-daemon_4.1.0.0+0~mr4.1.0.0_amd64.deb
• sudo dpkg -i ngcp-rtpengine-iptables_4.1.0.0+0~mr4.1.0.0_amd64.deb
• sudo dpkg -i ngcp-rtpengine-dbg_4.1.0.0+0~mr4.1.0.0_amd64.deb
• sudo apt-get -f install
• sudo dpkg -i ngcp-rtpengine-kernel-dkms_4.1.0.0+0~mr4.1.0.0_all.deb
• sudo dpkg -i ngcp-rtpengine-kernel-source_4.1.0.0+0~mr4.1.0.0_all.deb
• sudo dpkg -i ngcp-rtpengine_4.1.0.0+0~mr4.1.0.0_all.deb

7. Now Installation is completed and need to run the rtp engine.
8. We need to edit the /etc/default/ngcp-rtpengine-daemon file. Change the values as per below given configuration.

RUN_RTPENGINE=yes

LISTEN_UDP=12222

LISTEN_NG=22222

LISTEN_CLI=9900

INTERFACES="internal/10.140.3.246!52.20.136.229 external/52.20.136.229"

TIMEOUT=60

SILENT_TIMEOUT=3600

PIDFILE=/var/run/ngcp-rtpengine-daemon.pid

FORK=yes

TABLE=0

PORT_MIN=40000

PORT_MAX=60000

10. Now we need to edit kamailio.cfg file /etc/kamilio/kamilio.cfg.
11. Find and replace rtpprxoy to rtpengine.

12. Configure your kamailio RTPENGINE_SOCK parameter properly.

modparam("rtpengine", "rtpengine_sock", "udp:127.0.0.1:22222")
12. Save the changes and upload the file.
13. Stop the Kamailio :- sudo service kamailio stop
14. Now start the rtpengine using above init script.
    sudo /etc/init.d/ngcp-rtpengine-daemon restart
15. Start the Kamailio :- sudo service kamailio start
16. Give 777 permission to the kamailio_fifo file.
    sudo chmod 777 /var/run/kamailio/kamailio_fifo

18. RTPEngine installed and running successfully. To check this use below command.
    ps -ef | grep ngcp-rtpengine
19. Done.