How to install Asterisk on Ubuntu

Asterisk.sh

#!/bin/sh

# Update system
sudo apt update && sudo apt upgrade
sudo apt install wget build-essential subversion

# Download Asterisk
cd /usr/src/
sudo wget http://downloads.asterisk.org/pub/telephony/asterisk/asterisk-16-current.tar.gz
sudo tar zxf asterisk-16-current.tar.gz
cd asterisk-16.*/


# Installing Asterisk 
sudo ./configure
sudo make menuselect
sudo make -j2
sudo make install
sudo make samples
sudo make basic-pbx
sudo make config
sudo ldconfig

sudo nano /etc/default/asterisk
uncomment the following two lines:
AST_USER="asterisk"
AST_GROUP="asterisk"

sudo usermod -a -G dialout,audio asterisk
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

# Starting Asterisk
sudo systemctl enable asterisk
sudo systemctl start asterisk
asterisk -V
sudo asterisk -vvvr

# Configuring Firewall
sudo ufw allow 5060/udp
sudo ufw allow 10000:20000/udp