Which application (web browser access prefered) to read VM

Hello all !

I installed Asterisk 1.4.22 on a ubuntu 8.10 server.
I would like to have a web interface for my users so that they may check thei voicemails.

ARI from FreePBX would be perfect, but I have the impression that it easy to install it allone with Asterisk (and without FreePBX) - am I wrong?

Thanks a lot for any feedback !