Changes

Step 4: Installing asterisk. Note install only this version of asterisk in this way only. Go to http://downloads.asterisk.org/pub/telephony/asterisk/old-releases/  link and download '''asterisk-1.6.2.23.tar.gz''' file. Run below commands to install it

Step 4: Installing asterisk. Note install only this version of asterisk in this way only. Go to http://downloads.asterisk.org/pub/telephony/asterisk/old-releases/  link and download '''asterisk-1.6.2.23.tar.gz''' file. Run below commands to install it

  cd /usr/src

  cd /usr/src

  sudo tar zxvf ~/Downloads/asterisk-1.6.2.23.tar.gz

  sudo tar -xvzf ~/Downloads/asterisk-1.6.2.23.tar.gz

  sudo apt-get install ncurses-dev libxml2-dev g++

  sudo apt-get install ncurses-dev libxml2-dev g++

  cd asterisk-1.6.2.23

  cd asterisk-1.6.2.23