Yealink SIP-T53W IP phone Black 8 lines LCD Wi-Fi

Display Display diagonal: 9.4 cm (3.7") Display: LCD Backlight display: Yes Touchscreen: No Display resolution: 360 x 160 pixels Certificates Certification: CE, FC, RoHS Audio Voice codecs: G.726 Voice codecs: G.729A Voice codecs: G.729B Voice codecs: OPUS Voice codecs: G.722 Speakerphone: Yes Adaptive jitter buffers: Yes Microphone mute: Yes Comfort noise generation (CNG): Yes Voice codecs: G.723.1 Voice activity detection: Yes Voice codecs: iLBC Automatic gain control: Yes Packet loss concealment (PLC): Yes Operational conditions Operating temperature (T-T): 0 - 40 °C Operating relative humidity (H-H): 10 - 95% Packaging content Quick start guide: Yes Cables included: LAN (RJ-45) Number of handles included: 1 pc(s) Number of DECT wireless handsets: 4 Weight & dimensions Width: 212 mm Height: 174.5 mm Depth: 210.6 mm Management features Number of programmable keys: 8 Volume control: Buttons Integrated voicemail: Yes Design Product colour: Black Product type: IP Phone Keypad illumination: Yes Mounting: Desk/Wall Handset type: Wired handset Performance DECT connectable: Yes Dual-Tone Multi-Frequency (DTMF) modes: Out-of band Dual-Tone Multi-Frequency (DTMF) modes: SIP info Dual-Tone Multi-Frequency (DTMF) modes: In-band Network Bluetooth: Yes Wi-Fi: Yes Ethernet LAN: Yes Supported network protocols: FTP/TFTP/HTTP/HTTPS Quality of Service (QoS) support: Yes Ethernet LAN interface type: Gigabit Ethernet Networking standards: IEEE 802.11b Networking standards: IEEE 802.3af Networking standards: IEEE 802.11ac Networking standards: IEEE 802.1x Security algorithms: AES Security algorithms: HTTPS Bluetooth version: 4.2 Networking standards: IEEE 802.11a Networking standards: IEEE 802.1p Networking standards: IEEE 802.11g Networking standards: IEEE 802.11n Security algorithms: SIPS Camera Front camera: No Power AC adapter input voltage: 100 - 240 V Power over Ethernet (PoE): Yes AC adapter output voltage: 5 V Power consumption (typical): 2.3 W AC adapter output current: 1.2 A Phone features Phonebook sharing: Yes Call return: Yes Anonymous call: Yes Do not disturb function: Yes Caller ID: Yes Call pick up: Yes Call forwarding: Yes Call history: Yes Call transfer: Yes Short Message Service (SMS): Yes Lines quantity: 8 lines Answering machine: Yes Full duplex: Yes Call park: Yes Speed dialling: Yes Redialing: Yes Conference call: Yes Call hold: Yes Phonebook capacity: 1000 entries Number of VoIP accounts: 12 Call waiting: Yes Anonymous call rejection: Yes Ports & interfaces DC-in jack: Yes Ethernet LAN (RJ-45) ports: 2 USB 2.0 ports quantity: 1 RJ-9 ports quantity: 2