I used to use elastix, which is no longer being updated as an asterisk distribution. Can anyone recommend a nice simple solution like that for asterisk that is keeping current, or do I need to load asterisk on its own now?
FreePBX is the only realistic choice for a GUI these days. You have a choice of AsteriskNOW, from DIgium, or one of Sangoma’s distributions for FreePBX, if you want a CD image to install an OS, Asterisk and FreePBX on a bare machine, with minimum user input.
WAZO, a branch of XIVO, is actually also worth looking at it : http://wazo.community/