Ubuntu

How to Install Asterisk on Ubuntu 20.04

Talha Malik
How to Install Asterisk on Ubuntu 20.04

Introduction

Asterisk is a popular open-source that allows you to create communications applications such as VoIP gateways and conference servers. It is a useful choice for call centers, small businesses, and governments worldwide,…

Based on VoIP protocol, Asterisk allows us to make TCP/IP calls for free. It is a useful open-source. And we will guide you on how to install Asterisk on Ubuntu 20.04 as you go through it below. Hope you understand.

Update the package

Run the apt command to update:

$ sudo apt update

Output:

Then run:

$ sudo apt install wget build-essential git autoconf subversion pkg-config libtool

Output:

Install DAHDI and LibPRI

Asterisk communicates with digital and analog phones by DAHDI. Asterisk communicates with ISDN connections by the LibPRI library. The installation of these 2 is required.

Navigate to /usr/src directory and install DAHDI:

$ cd /usr/src/

Then run:

$ sudo git clone -b next git://git.asterisk.org/dahdi/linux dahdi-linux

Output:

Then navigate to dahdi-linux and run:

$ cd dahdi-linux

$ sudo make

$ sudo make install

Output:

Then run the following commands:

$ cd /usr/src/

$ sudo git clone -b next git://git.asterisk.org/dahdi/tools dahdi-tools

$ cd dahdi-tools

$ sudo autoreconf -i

$ sudo ./configure

$ sudo make install

$ sudo make install-config

$ sudo dahdi_genconf modules

To build LibPRI:

$ cd /usr/src/

$ sudo git clone https://gerrit.asterisk.org/libpri libpri

$ cd libpri

$ sudo make

$ sudo make install

Install Asterisk

Navigate to /usr/src directory and clone the Asterisk source:

$ cd /usr/src/

$ sudo git clone -b 18 https://gerrit.asterisk.org/asterisk asterisk-18

Output:

Then navigate to asterisk-18:

$ cd asterisk-18/

Download the MP3 sources:

$ sudo contrib/scripts/get_mp3_source.sh

Output:

Run the install_prereq script:

$ sudo contrib/scripts/install_prereq install

Output:

Type your ITU-T telephone code and press Ok.

Then run:

$ sudo ./configure

$ sudo make menuselect

Output:

Select format_mp3 and Save & Exit.

Start compiling:

$ sudo make -j2

Output:

Once done, install Asterisk:

$ sudo make install

Install either the generic configuration files:

$ sudo make samples

Lastly, install the Asterisk init script:

$ sudo make config

Updated shared libraries cache:

$ sudo ldconfig

Create Asterisk User

Create a user name asterisk:

$ sudo adduser --system --group --home /var/lib/asterisk --no-create-home --gecos "Asterisk PBX" asterisk

Output:

Configuring Asterisk:

$ nano /etc/default/asterisk

Add asterisk to the groups:

$ sudo usermod -a -G dialout,audio asterisk

Run the following commands to set permissions:

$ sudo chown -R asterisk: /var/{lib,log,run,spool}/asterisk /usr/lib/asterisk /etc/asterisk

$ sudo chmod -R 750 /var/{lib,log,run,spool}/asterisk /usr/lib/asterisk /etc/asterisk

Start Asterisk

Run the following command to start the Asterisk service:

$ sudo systemctl start asterisk

Check connection Asterisk:

$ sudo asterisk -vvvr

Output:

To enable Asterisk service:

$ sudo systemctl enable asterisk

Configure Firewall

By default, SIP uses UDP port 5060:

$ sudo ufw allow 5060/udp

Then run:

$ sudo ufw allow 10000:20000/udp

Output:

Conclusion

Above is the tutorial about how to install Asterisk on Ubuntu 20.04.

Thanks for reading!

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