How to remove Asterisk

it is sometimes necessary to completely remove Asterisk for one machine, for example because you need to install a newer version.

Stop Asterisk and unload its modules
The first thing you have to do is to stop Asterisk and unload the modules it may be using, e.g Zaptel's.
The following lines will brutally terminate Asterisk and kill all ongoing conversation. You have to kill safe_asterisk first, otherwise it will respawn Asterisk.

killall -9 safe_asterisk

killall -9 asterisk

Then you'll have to unload the Zaptel drivers; check which ones are loaded by issuing a:

[root@zebru]# lsmod | grep zaptel

zaptel                214820  2 wcfxo,wctdm

crc_ccitt               2113  1 zaptel

This means that the submodules wcfxo and wctdm are loaded for zaptel. We'll have to remove them in reverse order:

modprobe -r wcfxo

modprobe -r wctdm

..repeat for all zaptel submodules....

modprobe -r zaptel

If you repeat the lsmod | grep zaptel command now, it should find nothing.


Delete Asterisk files
By running the commands below, you will delete with no possible recovery an Asterisk system. First make a backup of things you'd like to keep, lik ethe log files or the configuration files.
Remember: once you run these commands, there's no turning back!

rm -rf /etc/asterisk

rm -f  /etc/zaptel.conf

rm -rf /var/log/asterisk

rm -rf /var/lib/asterisk

rm -rf /var/spool/asterisk

rm -rf /usr/lib/asterisk

Now your Asterisk system has been completely removed.

http://astrecipes.net/index.php?q=AstRecipes/Removing%20Asterisk