Since you brought this up, I just wanted to offer this... I have all my trunks through voip.ms - and I've been pretty happy with them. My wife kept needing to send faxes, so I finally set up my little linksys voip box to connect through the trunk, and I tried a few test faxes through efax - a few ended up jumbled, but I turned on the confirmation page and slowed down the fax speed to about 36K, and it's given me a 100% OK confirmation page OK. And thanks to state/government dealings, I've gotten quite a bit of usage out of it lately!