Business phonesENERGY STAR certified
Yealink SIP-T77U
Voice over internet protocol (voip) phone.
Configuration
Corded
Standby power
1.62 W
Gigabit Ethernet ports
1
Of 111 certified voice over internet protocol (voip) business phones, 44 have a lower standby power than the SIP-T77U (1.62 W).
- Maker
- Yealink
- Model
- SIP-T77U
- Type
- Voice over Internet Protocol (VoIP)
- Configuration
- Corded
- Gigabit Ethernet ports
- 1
- Standby power
- 1.62 W
- On the market since
- Feb 2025
- ENERGY STAR certified
- 18 Jun 2025
Source: ENERGY STAR certified business phones dataset, US EPA, record 4439371, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the SIP-T77U
Certified business phones from other makers, same color class, within 20% of its speed.
| Model | Type | Configuration | PoE class | Standby power |
|---|---|---|---|---|
| Mitel 6905 | Voice over Internet Protocol (VoIP) | Corded | Class 2 | 1.65 W |
| SNOM D810WB | Voice over Internet Protocol (VoIP) | Corded | Class 2 | 1.58 W |
| Gigaset P810B IP PRO | Voice over Internet Protocol (VoIP) | Corded | Class 2 | 1.58 W |
| Gigaset, CYTRACOM, snom P810B IP PRO | Voice over Internet Protocol (VoIP) | Corded | Class 2 | 1.58 W |
| SNOM, CYTRACOM D810WB | Voice over Internet Protocol (VoIP) | Corded | Class 2 | 1.58 W |
| Avaya J139 | Voice over Internet Protocol (VoIP) | Corded | Class 1 | 1.55 W |
Yealink
More Yealink business phones
| Model | Type | Configuration | PoE class | Standby power |
|---|---|---|---|---|
| SIP-T73W,SIP-T73U | Voice over Internet Protocol (VoIP) | Corded | - | 1.58 W |
| SIP-T74W,SIP-T74U | Voice over Internet Protocol (VoIP) | Corded | - | 1.6 W |
| SIP-T85W | Voice over Internet Protocol (VoIP) | Corded | Class 2 | 2.48 W |
| SIP-T87W | Voice over Internet Protocol (VoIP) | Corded | Class 2 | 2.79 W |
| SIP-T88W | Voice over Internet Protocol (VoIP) | Corded | Class 2 | 2.75 W |