Business phonesENERGY STAR certified
VTECH IS8121
Analog phone.
Configuration
Cordless
Standby power
0.63 W
Gigabit Ethernet ports
0
Extra handsets supported
2
Of 127 certified analog business phones, 71 have a lower standby power than the IS8121 (0.63 W).
- Maker
- VTECH
- Model
- IS8121
- Type
- Analog
- Configuration
- Cordless
- Gigabit Ethernet ports
- 0
- Extra handsets supported
- 2
- Standby power
- 0.63 W
- On the market since
- Jan 2021
- ENERGY STAR certified
- 10 Feb 2021
Certified under the same record
The maker lists these as the same machine or a variant of it: 1 base + 1 handset, IS8121-2, 1 base + 2 handset + 1 charger, IS8121-3, 1 base + 3 handset + 2 chargers, IS8121-4, 1 base + 4 handset + 3 chargers, IS8121-5, 1 base + 5 handset + 4 chargers, IS812*-**, 1 base + 2nd * handset + (2nd * -1) chargers.
Source: ENERGY STAR certified business phones dataset, US EPA, record 2373920, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the IS8121
Certified business phones from other makers, same color class, within 20% of its speed.
| Model | Type | Configuration | PoE class | Standby power |
|---|---|---|---|---|
| AT&T CL82215 | Analog | Cordless | - | 0.6 W |
| AT&T CL84115,CL84215,CL84265,CL84365,CL84XY5 | Analog | Corded | - | 0.6 W |
| AT&T CL82207 | Analog | Cordless | - | 0.6 W |
| AT&T EL52303 | Analog | Cordless | - | 0.6 W |
| AT&T DL72119 | Analog | Cordless | - | 0.6 W |
| vtech, AT&T DLP73210 | Analog | Cordless | - | 0.6 W |
VTECH
More VTECH business phones
| Model | Type | Configuration | PoE class | Standby power |
|---|---|---|---|---|
| BL102 | Analog | Cordless | - | 0.7 W |
| BL102-0 | Analog | Additional Handset | - | 0.2 W |
| C5400 | Voice over Internet Protocol (VoIP) | Additional Handset | - | 0.1 W |
| CD111A | Analog | Corded | - | 0.1 W |
| CM18045 | Analog | Additional Handset | - | 0.2 W |
| CS5119 | Analog | Cordless | - | 0.7 W |
| CS5129-2 | Analog | Cordless | - | 0.7 W |
| DECT 6.0 Cordless Phone | Analog | Cordless | - | 0.87 W |