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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.

ModelTypeConfigurationPoE classStandby power
AT&T CL82215AnalogCordless-0.6 W
AT&T CL84115,CL84215,CL84265,CL84365,CL84XY5AnalogCorded-0.6 W
AT&T CL82207AnalogCordless-0.6 W
AT&T EL52303AnalogCordless-0.6 W
AT&T DL72119AnalogCordless-0.6 W
vtech, AT&T DLP73210AnalogCordless-0.6 W

VTECH

More VTECH business phones

ModelTypeConfigurationPoE classStandby power
BL102AnalogCordless-0.7 W
BL102-0AnalogAdditional Handset-0.2 W
C5400Voice over Internet Protocol (VoIP)Additional Handset-0.1 W
CD111AAnalogCorded-0.1 W
CM18045AnalogAdditional Handset-0.2 W
CS5119AnalogCordless-0.7 W
CS5129-2AnalogCordless-0.7 W
DECT 6.0 Cordless PhoneAnalogCordless-0.87 W

All VTECH business phones