The zaptel source compile does not work with the Ubuntu 2.6.28 kernel.

ztdummy needs to be patched for this to work.  To do this:

1.  change directory to the location where your zaptel sources are
2.  download the patch:  wget 192.168.0.200/voip/patch-zaptel
3.  apply the patch:  patch -p1 < patch-zaptel
4.  continue with the zaptel make, as per the lab notes (i.e. start from the 'make clean')

if you get an error along the lines of:
'You do not appear to have the sources for the 2.6.28-11-server kernel installed.'

Then you will need to install these with:

apt-get install linux-headers-2.6.28-11-server



