Yealink SIP-T31G IP phone Grey LCD

Full duplex: Yes | Answering machine: Yes | Ethernet LAN: Yes | Comfort noise generation (CNG): Yes | Call history: Yes | RJ-9 ports quantity: 2 | Microphone mute: Yes | Speed dialling: Yes | Anonymous call rejection: Yes | Phonebook capacity: 1000 entries | Call transfer: Yes | Conference call: Yes | Mounting: Desk/Wall | Height: 162 mm | Call hold: Yes | Number of handles included: 1 pc(s) | Product type: IP Phone | Lines quantity: 2 lines | Depth: 189 mm | Caller ID: Yes | Call waiting: Yes | Plug and Play: Yes | Handset: Yes | Anonymous call: Yes | Redialing: Yes | Voice codecs: G.723.1 | Handset type: Wired handset | Touchscreen: No | Voice codecs: CNG | Voice codecs: PLC | Voice codecs: iLBC | Call return: Yes | Number of VoIP accounts: 2 | Voice codecs: G.729 | Voice codecs: G.729A | Ethernet cable: Yes | Speakerphone: Yes | Voice codecs: G.711a | Voice codecs: G.726 | Voice codecs: OPUS | Harmonized System (HS) code: 85171800 | Voice codecs: G.711Mu | Voice codecs: G.722 | Voice codecs: AJB | Voice codecs: VAD | Voice codecs: AGC | SIP registrar server: Yes | Wall mountable: No | Call forwarding: Yes | Backlight display: Yes | Sustainability compliance: Yes | Product colour: Grey | Power over Ethernet (PoE): Yes | Quick start guide: Yes | DC-in jack: Yes | Bluetooth: No | Package depth: 210 mm | Mounting kit: Yes | AC adapter output voltage: 5 V | Ethernet LAN interface type: Gigabit Ethernet | Quality of Service (QoS) support: Yes | Package width: 213 mm | AC adapter output current: 0.6 A | Operating temperature (T-T): -10 - 50 °C | Wi-Fi: No | Power consumption (typical): 3 W | Display diagonal: 5.84 cm (2.3") | Width: 188 mm | Networking standards: IEEE 802.1p | Networking standards: IEEE 802.1Q | Package height: 103 mm | Networking standards: IEEE 802.3af | AC adapter input voltage: 100 - 240 V | DHCP client: Yes | Ethernet LAN (RJ-45) ports: 2 | Networking standards: IEEE 802.1x | Ethernet LAN data rates: 10,100,1000 Mbit/s | Display: LCD | Display resolution: 132 x 64 pixels | Operating relative humidity (H-H): 10 - 95% | Packet loss concealment (PLC): Yes | Warnings: Follow instructions for correct installation and use. | Warnings: Do not open the appliance, risk of electric shock. | Compliance certificates: RoHS | Compliance certificates: REACH