Yet another question. A bit difficult.

So, I'm searching for a solution allowing me to preview faxes before printing, to get rid of SpamFaxes and their printing costs.

My current multifunction printer does not have preview function, it directly prints faxes.

Since 8 of 10 faxes I get are spam, it really becomes urgent I deal with that problem.

I've been searching for multifunction printers that would allow incoming faxes to be stored in their memory, and with the use of their software, let met check on my pc wether I want to print previews or not.
The thing is that some multifunctions do that, but it's never mentionned and even the manufacturer's representatives have no clue about it.

So far I've found some models from HP, but they have tremendous problems with their paper carriers, so no thanks.
Many Brother multifunctions do that, but I hate their product and their ink management: if the printer thinks a cartridge is empty, it will stop all printing, even if you only print black and that cartridge is ok. Also, at times the printer tells you a cartridge is empty when obviously it isn't.

Another solution would be a little box with a RTC line-in and an ethernet out. It would act as a faxbox for incoming faxes. But such a thing does not exist, does it?

I've tried old RTC modems, but driver support isn't good enough nowadays.

If anyone knows of a cheap and easy solution, thanks a lot for help.