VOIP Callbox

Need to add a VoIP call box for aftertastes hours gate access to a couple of locations that already have BVE installed. Does anyone have any experience with this type of installation and BVE? I've got my eye on something like the Viking E-10-IP-EWP but Viking doesn't explicitly support BVE so I thought I'd see if anyone knows knows if something like that will work. I'd hate to have to go to another provider for just 2 lines.