tar czf our-all-asterisk-20070206-backup.tar.gz asterisk asterisk-addons libpri zaptel
rm -rf asterisk asterisk-addons libpri zaptel
tar zxfv all-asterisk-current.tar.gz
cd libpri
make clean; make; make install
cd ..
cd zaptel
make clean; make linux26; make install
cd ..
cd asterisk
make clean; make; make install
cd ..
cd asterisk-addons
make clean; make; make install
shutdown -r now

test it