> IIRC FXO is what you need to connect to > the phone company and FXS if you're connecting to analog phones. Seems here http://www.pbxeq.com/fxs_vs_fxo.php to indicate the opposite. Here http://www.3cx.com/PBX/FXS-FXO.html it seems to indicate something altogether different--don't know what they saying there really. Anyhow I have a few options here http://tinyurl.com/mlnrf6 which is a retailer in my country. There is a single FXS or FXO there. Which one do I need? For the PC itself, I think any simple modern machine will be more than sufficient. I told the boss the estimate is 8-20 hours of work and he accepted that. :) Regarding doing a virtual machine, I now think against that because that would entail hardware virtualization and require a driver AFAIK for the card on both the host and the guest OS and if the host is Windows, I presume that thare are drivers somewhere for Windows (here might be a place http://www.asteriskwin32.com/ ) but it seems that without question the main OS for this type of work is Linux and trying to use Windows may be just asking for (extra) headaches. If I use Debian Stable, then I expect they will be OK--it *is* a pretty stable distro. :) Thanks.