Product type: IP phone Handset type: Wired handset Product colour: Black Wall mountable: Y Operating system installed: Android Operating system version: 9.0 Dual-Tone Multi-Frequency (DTMF) modes: SIP info Answering machine: Y Call waiting: Y Call hold: Y Call forwarding: Y Conference call: Y Redialing: Y Do not disturb function: Y Caller ID: Y Call park: Y Call pick up: Y Full duplex: Y Call transfer: Y Message-waiting indicator (MWI): Y Integrated voicemail: Y Volume control: Buttons Keypad number of keys: 8 Display: LCD Display diagonal: 4.3 Touchscreen: Y Speakerphone: Y Microphone mute: Y Voice codecs: G.711,G.722,G.729,SILK Echo cancellation: Y Voice activity detection: Y Adaptive jitter buffers: Y Comfort noise generation (CNG): Y Packet loss concealment (PLC): Y Ethernet LAN: Y Ethernet LAN interface type: Gigabit Ethernet Ethernet LAN data rates: 10,100,1000 Wi-Fi: N Bluetooth: N Supported network protocols: UDP/TCP, NTP, DNS/SRV Quality of Service (QoS) support: Y Security algorithms: 802.1x RADIUS,HTTPS,SRTP,TLS Networking standards: IEEE 802.3af Headset connectivity: 1 Ethernet LAN (RJ-45) ports: 2 DC-in jack: Y WAN connection type: RJ-45 Cable lock slot: Y Power over Ethernet (PoE): Y AC adapter input voltage: 100 - 240 Input current: 2 AC adapter output voltage: 12 Operating temperature (T-T): 0 - 40 Storage temperature (T-T): -20 - 70 Width: 249 Depth: 132 Weight: 916 Height (min): 160.9 Height (max): 189.2 Package width: 316 Package depth: 255 Package height: 95 Package weight: 1388 Number of handles included: 1 Manual: Y Cables included: LAN (RJ-45) Products per master (outer) case: 15900 Master (outer) case length: 500 Master (outer) case width: 532 Master (outer) case height: 361