Unified messaging Solution * Windows 2000 based system * 4-48 Voice Ports * 1-4 Fax Ports * Includes all features of DV4 PLUS larger capacity and ability to support various third paty applications * Optional IVR modules support various vertical markets including Health Care, Education, Hospitality, and others * Optional features are available including a rack-mount case, multiple mirrored IDE and Hot-Swappable mirrored SCSI Hard Drives * Also supports "Hosted software" including call accounting, fax server software and OAISYS - the "soft phone" CRM solution for MAGIX