for sangoma voice with vicidialnow your only solution is do a manual setup for zaptel or dahdi .
exemple as i know vicidialnow use zaptel 1.2 with asterisk 1.2 too but the zaptel is included directly in the img kernel .
so sangoma can not be installed .
this is my step for the sangoma and it will work.
mkdir /usr/src/tars
cd /usr/src/tars
wget wget
http://downloads.digium.com/pub/zaptel/ ... .27.tar.gz
wget wget
ftp://ftp.sangoma.com/linux/wanpipe_voi ... -1.0.9.tgz
tar -xzf /usr/src/tars/zaptel-1.2.27.tar.gz
tar -xzf /usr/src/tars/wanpipe-voicetime-1.0.9.tgz
cd /usr/src/zaptel-1.2.27
make clean
make
make install
make zttool
rm /etc/init.d/zaptel
rm /etc/rc.d/init.d/zaptel
# Install some VoiceTime!
cd /usr/src/wanpipe-voicetime-1.0.9
make ZAPDIR=/usr/src/zaptel-1.2.27/kernel
ok now here the wanpipe and zaptel are done we need just load the wanpipe at the boot server .
so nano /etc/rc.local
and add this line: ZAP_MOD=wanpipe_voicetime
and reboot your server