Sixteen SIP accounts, a 7-inch 800×480 capacitive touchscreen, dual gigabit ethernet with PoE, integrated Wi-Fi 6 and Bluetooth 4.2, dual USB ports, EHS support. The T57W is the T5 family's flagship non-Android phone — seven-inch touchscreen, wireless, and the modern Yealink chassis aesthetic.
The T57W is what you buy when you want a 7-inch touchscreen executive phone with built-in Wi-Fi but you do not need or want Android. It is the T5 family's top non-Android model — modern chassis design, Wi-Fi 6, Bluetooth 4.2, dual USB, capacitive multi-touch — at a price point well below the Android-based T58 siblings.
Where it lands against the T48U (the T4-family touchscreen): same 7-inch screen, same dual USB, same money. The T57W adds built-in Wi-Fi 6 and Bluetooth, but gives up EXP43 sidecar support (no sidecar connector on this chassis). The trade is wireless flexibility vs. expandable BLF — pick by use case. For wireless-mobile executive desks the T57W wins; for assistant-pool deployments needing 100+ BLF keys, the T48U + EXP43 wins.
Where it lands against the T58A: $60 more gets you Android, an Android-style UI, and an optional camera mount for video calling. The T58W (full Android with built-in camera) is $100 more. For non-video executive desks, the T57W's focused VoIP firmware is arguably more reliable than the Android-based equivalents — no app crashes, no OS updates, just a phone.
Honest weakness: no sidecar support. For receptionists who need to monitor 30+ extensions, the T48U or T46U with EXP43 is the right call. The T57W is for executives whose own desk is the focus, not for receiving-floor central monitoring stations.
| Display & user interface | |
| Display | 7-inch 800×480 capacitive touch color TFT LCD |
| Touch | Multi-touch capacitive |
| Line keys | 29 multi-page line keys with dual-color LEDs |
| Soft keys | 4 context-sensitive soft keys |
| VoIP & SIP | |
| SIP accounts | Up to 16 SIP accounts |
| Protocols | SIP v2 (RFC 3261), TLS, SRTP, BLF/BLA |
| Codecs | Opus, G.722, G.711, G.729AB, G.726, iLBC |
| Provisioning | FTP/TFTP/HTTP/HTTPS, PnP, TR-069, RPS |
| Audio | |
| HD voice | HD handset and HD speakerphone |
| Speaker | Full-duplex with AEC |
| Headset | RJ9 + 2 × USB + Bluetooth 4.2 + EHS |
| Connectivity | |
| Ethernet | Dual 10/100/1000 Mbps gigabit |
| PoE | IEEE 802.3af Class 3 |
| Wi-Fi | Built-in dual-band Wi-Fi 6 (802.11ax) |
| Bluetooth | Built-in Bluetooth 4.2 |
| USB | 2 × USB 2.0 |
| Power & physical | |
| Power | PoE 802.3af, or 5V/2A adapter |
| Dimensions | Approximately 266 × 211 × 41 mm |
| Wall mount | Yes |
| In the box | |
| Included | T57W handset, base, curl cord, ethernet cable, stand, provisioning card |
| Not included | Power adapter, USB headset |
Plug the T57W into PoE and ethernet. About a minute later it has registered to your extension. Same auto-provisioning flow as every other supported phone — no SIP credentials to type, no firmware to chase.
Boot, fetch config from our provisioning server, register, ready. About one minute on a normal connection.
16 lines per phone. Each line key has a dual-color LED for status at a glance.
Programmable mapped from the voip.army portal — BLF, paging, parking, transfer destinations.
Bringing your own? Send us the MAC, factory-reset, plug in. No charge to add it to the fleet.
Standard PoE — any 802.3af-compliant switch from the last 15 years powers the phone without an adapter.
Tested against every Yealink firmware release for T57W. We catch regressions before they reach your fleet.
Tell us how many you need and what extensions to map. We ship pre-configured next business day; you plug them in and they work.