I just found that the copy of zaptel-modules on
http://deb.linuxmce.org/ubuntu/dists/intrepid/beta2/binary-i386/zaptel-modules-2.6.27-16-generic_1.4.11~dfsg-2+2.6.27-16.44_i386.deb
is incorrect, it is just a copy of package linux-image-diskless !
The version on release looks better though:
http://deb.linuxmce.org/ubuntu/dists/intrepid/release/binary-i386/zaptel-modules-2.6.27-16-generic_1.4.11~dfsg-2+2.6.27-16.44_i386.deb[code]
Once this is fixed in the repository, I expect the installation of pluto-asterisk will go fine[/code]