We are upgrading from 8 analog phone lines that currently plug into two VIC2-4FXO cards on my Cisco 2821 Voice Gateway router to a voice PRI. I already purchased a VWIC2-1MFT-T1/E1 for the PRI connection. Now all I need is an FXS card to plug my fax machines into. They are going to port my fax number over to the PRI. We have three fax machines in the office, so I don't believe a VIC-2FXS will work since it only has 2 ports, unless I can somehow use a splitter. Will a VIC-4FXS/DID work? The description from Cisco on this card says "Four port FXS/DID Dual Function VIC. FXS mode is default operating mode" I just wanted to make sure since the part number has DID on it. Thanks.