Install Asterisk 16 LTS on Ubuntu 18.04 / 16.04 & Debian 10/9

asterisk.sh

#Update system & reboot
sudo apt update && sudo apt -y upgrade
sudo reboot

#Install Asterisk 16 LTS dependencies
sudo apt -y install git curl wget libnewt-dev libssl-dev libncurses5-dev subversion  libsqlite3-dev build-essential libjansson-dev libxml2-dev  uuid-dev

#Add universe repository and install subversio
sudo add-apt-repository universe
sudo apt update && sudo apt -y install subversion

#Download Asterisk 16 LTS tarball
# sudo apt policy asterisk
cd /usr/src/
sudo curl -O http://downloads.asterisk.org/pub/telephony/asterisk/asterisk-16-current.tar.gz

#Extract the file
sudo tar xvf asterisk-16-current.tar.gz
cd asterisk-16*/

#download the mp3 decoder library
sudo contrib/scripts/get_mp3_source.sh

#Ensure all dependencies are resolved
sudo contrib/scripts/install_prereq install

#Run the configure script to satisfy build dependencies
sudo ./configure

#Setup menu options by running the following command:
sudo make menuselect

#Use arrow keys to navigate, and Enter key to select. On Add-ons select chan_ooh323 and format_mp3 . 
#On Core Sound Packages, select the formats of Audio packets. Music On Hold, select 'Music onhold file package' 
# select Extra Sound Packages
#Enable app_macro under Applications menu
#Change other configurations as required

#build Asterisk
sudo make

#Install Asterisk by running the command:
sudo make install

#Install documentation(Optionally)
sudo make progdocs

#Install configs and samples
sudo make samples
sudo make config

#Create a separate user and group to run asterisk services, and assign correct permissions:
sudo groupadd asterisk
sudo useradd -r -d /var/lib/asterisk -g asterisk asterisk
sudo usermod -aG audio,dialout asterisk
sudo chown -R asterisk.asterisk /etc/asterisk
sudo chown -R asterisk.asterisk /var/{lib,log,spool}/asterisk
sudo chown -R asterisk.asterisk /usr/lib/asterisk

#Set Asterisk default user to asterisk:
sudo vim /etc/default/asterisk

# AST_USER="asterisk"
# AST_GROUP="asterisk"
# sudo ldconfig

sudo vim /etc/asterisk/asterisk.conf
# runuser = asterisk ; The user to run as.
# rungroup = asterisk ; The group to run as.

#Restart asterisk service
sudo systemctl restart asterisk

#Enable asterisk service to start on system  boot
sudo systemctl enable asterisk

#Test to see if it connect to Asterisk CLI
sudo asterisk -rvv

#open http ports and ports 5060,5061 in ufw firewall
sudo ufw allow proto tcp from any to any port 5060,5061