Installing Asterisk from Source

You can download latest source code from

https://downloads.asterisk.org/pub/telephony/asterisk/

To install latest 15.x version, run

cd /usr/local/src
wget https://downloads.asterisk.org/pub/telephony/asterisk/asterisk-15-current.tar.gz
tar xvf asterisk-15-current.tar.gz
cd asterisk-15.2.2
./configure
make && make install

You will need to install dependency.

Asterisk