Refurbished unit approx 18 months old, in excellent condition and protected by an Uninteruptible Power Supply (UPS). Warranty - 12 months replacement or 100% refund. Configured for up to 4x PSTN lines, up to 4x analogue extensions, up to 8x digital extensions. Also includes 4x channel Auto Attendant and Caller Number Display. PSTN line card can easily be replaced by a 4x or 8x VoIP/SIP line card (trunks). Ideal basic system for home, SOHO, or small business and can be expanded as your business needs grow with additional trunk and/or extension interface modules to a total of 40 ports in the one cabinet. The extension capacity can be expanded with additional 8 port extension modules - of either type - to a maximum of 28 extensions. TeleBiz has a range of handset options.