Yealink SIP-T57W - VoIP phone

design
Product type: IP phone
Handset type: Wired handset
Product color: Grey
Mounting: Table/Wall
Services
Dual-Tone Multi-Frequency Modes (DTMF): In-Band, Out-of-Band, SIP Info
Phone features
Feature: Answering machine
Feature: DND (Do Not Disturb) function
Feature: Caller ID
Feature: Knock
Telephone directory capacity: 1000 entries
Feature: Speed dial
Feature: Hold call
Feature: Call forwarding
Feature: Telephone conference
Feature: Repeat Election
Feature: Call Park
Feature: Call answering
Feature: Anonymous call
Feature: Anonymous call rejection
Feature: Full duplex
Feature: SMS (Short Message Service)
Number of VoIP accounts: 16
Feature: Call Return
Feature: Call transfer
Feature: MWI (Display of existing message)
Feature: Call log
Management functions
Feature: Integrated answering machine
Volume control: Buttons
Screen
Display: LCD
Screen diagonal: 17.8 cm (7“)
Display resolution: 800 x 480 pixels
Feature: Touchscreen
Audio
Feature: Hands-free calling
Feature: Microphone mute
Language codec: G.722, G.723.1, G.726, G.729A, G.729B, iLBC
Feature: Speech activity recognition
Feature: Adaptive jitter buffers
Feature: Automatic profit control
Feature: Comfort noise generation (CNG)
Feature: Anti-Clipping (ACLP)
Feature: Packet Loss Concealment (PLC)
network
Feature: Ethernet/LAN
Ethernet LAN interface type: Gigabit Ethernet
Feature: Wi-Fi
WLAN standards: 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Feature: Bluetooth
Supported network protocols: FTP/TFTP/HTTP/HTTPS
Feature: Quality of Service (QoS) Support
Supported security algorithms: AES, HTTPS, MD5, SRTP
Network standard: IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Connections and interfaces
Number of USB 2.0 ports: 1
Number of Ethernet LAN ports (RJ-45): 2
Number of RJ9 ports: 2
Feature: Direct current (DC) connection
energy
Feature: Power over Ethernet (PoE)
Power supply input voltage: 100 - 240 V
Power supply output voltage: 5 V
AC adapter output current: 2 A
Operating conditions
Operating temperature: 0 - 40 °C
Relative humidity during operation: 10 - 95%
Weight and dimensions
Width: 259.4 mm
Depth: 220 mm
Height: 211 mm
Scope of delivery
Feature: Quick Start Overview
Number of handles included: 1 piece(s)
Included cable: LAN (RJ-45)