I'm trying to find an FXS adapter. With so many out there and posts on all of them I can't find out which one is best. I'd be happy to post a guide on my website with the results if that would be beneficial to everyone. What's the best FXS adapter out there? Best meaning - best quality voice and the most reliable (not needing to be rebooted, not failing). Price no object. If you have experience with a few please list order of preference. If you have other criteria to add that would be great too. - Ease of setup, size, PoE, cost, anything else.