I've seen Faxing issues over and over in the channel, so since I don't need it so much I'd like to outsource it.
I've had a recommendation to use metrofax - they seem to have a nice website, great pricing, and an API that I may be able to get access to.
Are there any other suggestions for a faxing both inbound and outbound that I can plug into my GUI for customers?

Thanks!

-Avi Marcus