ESI IVX C-Class Gen II All-In-One Digital Phone System with Power Supply (Refurbished)ESI IVX C Class All In One Digital Phone System w Power Supply Key Features: Full integration With an IVX C Class system, just one compact cabinet does what other systems must combine multiple boxes to do. This makes installation and maintenance much simpler Just the right size for most smaller businesses Up to six phone lines, up to 12 digital stations, and two dedicated analog ports (for your cordless phone, fax machine or other analog devices) for