System now working with TDM 410
Brief steps undertaken -
fresh install from version sme-sail-617 iso
update server from console manager (card no longer recognised)
log into server and download sail-640 & latest zaptel drivers
yum localinstall sail-version
yum install gcc
yum install kernal-devel
configure, make & install latest zaptel drivers
reboot
in server-manager - probe card, stop card, start card
done.
extensions do not show up in operator panel on my system.