The Yealink SIP-T53W wired IP phone supports up to 12 VoIP accounts and features a 3.7-inch adjustable monochrome LCD with a resolution of 360 × 160 pixels. Optima HD Voice technology, the Acoustic Shield noise filter and the Opus wideband codec help deliver clear voice communications, while the phone is compatible with hearing aids.

The USB 2.0 port supports call recording to a flash drive, USB headset connectivity and up to three Yealink EXP50 expansion modules, with up to 180 programmable DSS keys. The two Gigabit Ethernet ports feature built-in PoE, while dual-band 2.4/5 GHz Wi-Fi and Bluetooth 4.2 provide wireless connectivity.

• Type: Wired IP phone
• Color: Gray
• SIP lines: 12
• Display: 3.7-inch monochrome LCD, 360 × 160 pixels, with backlight
• Touchscreen: No
• Phonebook capacity: 1000
• Features: Caller ID, speakerphone
• Audio: HD Voice, Optima HD Voice, Acoustic Shield
• Audio codecs: Opus, G.722, PCMU (G.711A), PCMA (G.711µ), G.729, G.729A, G.729B, G.729AB, G.726, G.723.1, iLBC
• Connectivity: Dual-band 2.4/5 GHz Wi-Fi, Bluetooth 4.2, two Gigabit Ethernet ports, USB 2.0, RJ9
• Power supply: PoE
• Call recording: Via USB flash drive
• Headset compatibility: Wired and wireless USB headsets, EHS wireless headsets
• Expansion modules: Up to 3 Yealink EXP50 units
• DSS keys: Up to 180
• Use: Reception / Call Center