I'll give it a whirl with the 400h because they are already on their way. If they don't work I'll have to scare up some of the San-bar cards. This is going to be a shoebox on a shoestring, so I have to try what I have first. Work has been kinda crappy so money is tight. Though line cards aren't usually too expensive, I'm not looking forward to buying connectorized cables to hook the phones up.