Yealink SIP-T57W
Overview
The Yealink SIP-T57W is a premium business desk phone designed for executives and high-volume users. It features a large 7-inch capacitive adjustable touchscreen, built-in dual-band WiFi and Bluetooth, dual Gigabit Ethernet ports, and support for up to 16 SIP accounts. The SIP-T57W supports Yealink EXP50 expansion modules for additional programmable keys, making it well-suited for users managing multiple lines or contact center roles.
It is compatible with most SIP-based PBX platforms and UC systems.
Technical Specifications
| Specification | Details |
|---|---|
| SIP Accounts / Lines | 16 SIP accounts / 29 programmable keys |
| Display | 7" adjustable capacitive touchscreen, 800ร480 resolution, color |
| WiFi | Built-in dual-band (2.4 & 5 GHz), 802.11 a/b/g/n/ac, up to 433 Mbps, WPA3 |
| Bluetooth | BT 4.2 โ wireless headsets and mobile contact sync |
| Ethernet Ports | Dual Gigabit (10/100/1000 Mbps) with PC pass-through |
| Power over Ethernet | โ (802.3af, 4.0โ7.8 W) |
| USB Port | USB 2.0 (5V/500mA) โ USB headsets, call recording, EXP50 modules |
| Expansion Modules | Up to 3ร Yealink EXP50 (180 additional paperless DSS keys) |
| Audio Codecs | G.711ฮผ/a, G.722 (HD), G.726, G.729/A/B, G.723.1, iLBC, Opus |
| Noise Reduction | Acoustic Shield โ multi-mic virtual noise barrier |
| Security | TLS 1.3, SRTP, 802.1x EAP, HTTPS provisioning |
| Provisioning | Zero-touch, auto-provisioning (RPS), TR-069, TFTP, HTTP/HTTPS |
| Dimensions | 259ร220ร211 mm (base) | ~1.94 kg |
| Wall Mountable | โ (optional wall mount bracket) |
Key Features
Expansion Modules (EXP50)
The SIP-T57W supports up to 3 Yealink EXP50 expansion modules connected via the USB port. Each EXP50 adds:
- 4.3-inch color screen (272ร480)
- 60 flexible programmable buttons (BLF, speed dial, call park, etc.)
With 3 modules connected, the phone supports up to 180 additional DSS keys, making it well-suited for receptionists and call center leads managing large numbers of contacts or call queues.