SIP-T53; Prime Business Phone;3.7" 360*160 pixels graphical LCD with adjustable screen;Dual-port Gigabit Ethernet ;no built-in Bluetooth and Wi-Fi, support via USB dongle;USB 2.0 port for USB recording, headsets, EXP50, and Bluetooth dongle, Wi-Fi dongle;Up to 12 VoIP accounts;Optimal HD audio, HAC Handset;Paperless label design;Wall mountable;IEEE 802.3af PoE support, without PSU;EHS support for specific Jabra, Plantronics & Sennheiser wireless headsets via USB adapter, 1 x USB, optional Bluetooth support (requires adapter), optional Wi-Fi support (requires adapter), add up to 3 expansion modules (sidecar / attendant console)
