How to remove Zaptel?

1. Stop Asterisk:
   /etc/init.d/asterisk stop
2. Stop Zaptel:
   /etc/init.d/zaptel stop
3. Remove Zaptel:
   cd /usr/src/zaptel-1.4.12.1
   make uninstall-modules
   make uninstall-hotplug
   rm /etc/zaptel.conf
   rm /etc/init.d/zaptel