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| IN THE BOX | |
|---|---|
| Sales Package | Yealink T57W Corded Landline Phone IP Phone | 
| General | |
|---|---|
| Brand | Yealink | 
| Model | T57W | 
| Color | black | 
| Display | 7-inch capacitive adjustable touchscreen (800 x 480 resolution) | 
| Audio Technology | Yealink Acoustic Shield, HD Voice, Hearing Aid Compatible (HAC) handset | 
| Wireless Connectivity | Built-in Bluetooth 4.2, Dual-band Wi-Fi (2.4GHz/5GHz, 802.11a/b/g/n/ac) | 
| USB Port | USB 2.0 port for USB recording, wired/wireless USB headsets, and EXP50 expansion modules | 
| Ethernet Ports | Dual-port Gigabit Ethernet (10/100/1000 Mbps) | 
| Power over Ethernet (PoE) | IEEE 802.3af compliant (PoE support) | 
| VoIP Accounts | Supports up to 16 SIP accounts | 
| Expansion Modules | Supports up to 3 Yealink EXP50 expansion modules | 
| Audio Codecs | Opus, G.722, PCMA, PCMU, G.729A/B, G.726 | 
| Firmware Compatibility | Unified firmware with T53/T53W/T54W/T57W series | 
| Security | Supports SRTP, TLS, HTTPS, 802.1x, OpenVPN, and VPN pass-through | 
| Power Supply | Optional 5VDC 2A power supply (sold separately) | 
| Dimension | |
|---|---|
| Dimension | 245 mm x 210 mm x 160 mm | 
| Weight | 1.2 kg | 
| Warranty | |
|---|---|
| Warranty Type | Official Manufacturer Warranty | 
| Warranty Period | 1 year |