Gigaset N870 IP PRO Multicell DECT System for professional communication, Die Gigaset N870 IP PRO is the ideal solution for companies that need a seamless, scalable, and powerful DECT mobile communication. The System supports both small installations as well as large, multi-site networks for reliable accessibility and perfect voice quality in every area. Product Highlights: Scalable DECT multi-cell System For small Teams to large enterprises with Up to 250 handsets & 60 parallel calls per site Seamless Handover (Roaming & Handover) – uninterrupted conversations when switching between radio cells Compatible with all Gigaset PRO-mobile SIP parts-compatibility – Works with many IP-PBX (e.g., Asterisk, 3CX, NFON, etc.), Zero-Touch Provisioning & centralized management PoE support – power supply over the network (no separates power supply needed) - Flexible deployment options: For companies with multiple floors, buildings, or locations Expandable through additional bases (e.g. N870/N670/N720) Cloud or On-Premise infrastructures note: For the operation of at least a Central DECT Manager function is required (by N870 provided for me automatically). The System can be expanded by adding more bases and Manager. For further technical information, please find on the official product page of Gigaset .