Yealink SIP-T77U Touch Screen Business IP Phone
PRODUCT DESCRIPTION
Yealink SIP-T77U 7" Touch Screen Gigabit Business IP Phone with USB-A and USB-C (SIP-T77U) - 1 Year Local Warranty
Yealink T77U — A Revolutionary SIP Phone with a 7-inch Touch Screen
The Yealink SIP-T77U is the flagship of Yealink's new T7 series: a slim phone with a 7-inch 800 x 480 capacitive adjustable touch screen, up to 16 SIP accounts, 84 one-touch DSS keys and 10-way conferencing — ideal for managers, receptionists and power users in Singapore offices.
Clean Sound with AI Noise Cancellation
Yealink HD voice on handset and speaker, a 3W speaker, AI Noise Cancellation, Acoustic Shield and Smart Noise Filtering keep calls clear, and the hearing aid compatible (HAC) handset keeps the phone accessible to all users.
Gigabit, USB-A and USB-C
Dual-port Gigabit Ethernet with PoE, USB Type-A and Type-C ports and support for up to three colour-screen expansion modules (234 additional keys) make the T77U a complete desk console. Wi-Fi is available via the Yealink WF50 adapter and Bluetooth via the BT51.
Three Rings of Security
A TEE hardware encryption solution, TLS 1.3 and AES-256 configuration encryption protect every call, and browser, phone or auto-provisioning with Zero-Touch and TR-069 simplify deployment.
Yealink SIP-T77U Datasheet — Technical Specifications
| Model | Yealink SIP-T77U |
| Part Number / SKU | SIP-T77U |
| Product Type | 16-account touch screen Gigabit business IP desk phone |
| Warranty | 1 Year Local Warranty (Singapore) |
| Display | 7" 800 x 480 capacitive adjustable colour touch screen with backlight |
| VoIP Accounts | Up to 16 SIP accounts |
| Keys | 84 one-touch DSS keys; 7 feature keys (hold, transfer, message, headset, mute, redial, speakerphone) |
| Conferencing | 10-way conferencing |
| Audio | HD voice (HD handset, HD speaker), 3W speaker, AI Noise Cancellation, Acoustic Shield, Smart Noise Filtering, HAC handset |
| Wideband Codecs | AMR-WB (optional), G.722 |
| Narrowband Codecs | AMR-NB (optional), PCMU (G.711μ), PCMA (G.711A), G.723.1, G.729, G.729A, G.729B, G.729AB, G.726, iLBC |
| Ethernet | Dual-port Gigabit Ethernet |
| PoE | IEEE 802.3af, Class 3 |
| Wi-Fi | Via Yealink WF50 (V1) adapter |
| Bluetooth | Via Yealink BT51 adapter |
| USB | 2 x USB ports (Type-A and Type-C) |
| Expansion | Up to 3 colour-screen expansion modules (234 additional keys) |
| Security | TEE hardware encryption solution, TLS 1.3, AES-256 configuration file encryption |
| Management | Browser, phone or auto-provisioning; Zero-Touch, TR-069 |
| Power Consumption | PoE: 2.418–3.233 W; adapter: 2.48–2.63 W |
| Dimensions (W x D x H x T) | 262.1 x 167.5 x 219.2 x 56.9 mm |
| Operating Environment | -10 to 45 °C, 10–95% humidity |
| Colour | Classic Grey |
Compatibility & Software Support
The SIP-T77U is a standards-based SIP phone that registers up to 16 accounts on SIP-based IP-PBX platforms and SIP trunk services, including popular systems used by Singapore businesses such as 3CX, Yeastar and Asterisk-based PBXs. Optional accessories include the WF50 Wi-Fi adapter, BT51 Bluetooth adapter and colour-screen expansion modules, and fleets are deployed with auto-provisioning, Zero-Touch or TR-069.
Package Contents & T7 Series Ordering Information
In the box: Yealink SIP-T77U IP phone, handset with handset cord, 2 m CAT5E Ethernet cable, stand, quick start guide. Power adapter and wall mount bracket optional (PoE supported).
| Yealink SIP-T73U | 2.8" colour screen, 12 SIP accounts, wired |
| Yealink SIP-T73W | 2.8" colour screen, built-in Wi-Fi 6 and Bluetooth 5.0 |
| Yealink SIP-T74U | 4.3" colour screen, 16 SIP accounts, wired |
| Yealink SIP-T74W | 4.3" colour screen, built-in Wi-Fi 6 and Bluetooth 5.0 |
| Yealink SIP-T77U | 7" touch screen, 16 SIP accounts, 84 DSS keys (this model) |
Datasheet & Downloads
Frequently Asked Questions — Yealink SIP-T77U
What is the difference between the T77U and the T87W?
Both have a 7-inch 800 x 480 touch screen, 16 accounts and 84 DSS keys. The T87W adds built-in Wi-Fi 6 and Bluetooth 5.0; the T77U uses optional WF50 and BT51 adapters.
Does the SIP-T77U support PoE?
Yes, IEEE 802.3af Class 3. A power adapter is optional.
Which USB ports does the T77U have?
One USB Type-A and one USB Type-C port.
Can I add expansion modules?
Yes, up to three colour-screen expansion modules for 234 additional keys.
Does the Yealink SIP-T77U come with local warranty in Singapore?
Yes. Every SIP-T77U sold by SourceIT comes with 1 year local Singapore warranty and a GST invoice.
Product Video
Official Yealink T77U interface video (yealink.com).
