Grandstream GDP 750 Base

Product colour: Black Power over Ethernet (PoE): Yes Operating temperature (T-T): -10 - 50 °C Storage temperature (T-T): -20 - 60 °C Operating relative humidity (H-H): 10 - 90% Weight: 143 g Dimensions (WxDxH): 130 x 90 x 28.5 mm Package weight: 360 g Security algorithms: SSL/TLS Number of handsets supported (max): 5 Voice codecs: PLC Firmware upgradeable: Yes Quality of Service (QoS) support: Yes Maximum range: 300 m Ethernet LAN: Yes Ethernet LAN (RJ-45) ports: 1 Call hold: Yes Conference call: Yes Call waiting: Yes