Avaya · 5 models
Avaya business phones
Every Avaya phone certified under ENERGY STAR and listed for the US market, fastest first. Each model page has the full certified specs and comparable machines from other makers.
| Model | Type | Configuration | PoE class | Standby power |
|---|---|---|---|---|
| J129 IP Phone | Voice over Internet Protocol (VoIP) | Corded | Class 1 | 1.16 W |
| J139 | Voice over Internet Protocol (VoIP) | Corded | Class 1 | 1.55 W |
| J159 | Voice over Internet Protocol (VoIP) | Corded | Class 1 | 2.04 W |
| J179 | Voice over Internet Protocol (VoIP) | Corded | Class 1 | 1.85 W |
| J189 IP Phone | Voice over Internet Protocol (VoIP) | Corded | Class 2 | 1.92 W |
Source: ENERGY STAR certification data, US EPA. Data build 2026-09-29. Brand names are as the maker certified them, with obvious variant spellings merged.