AT&T E2812B User Manual
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Quick start guide
E2812B
2.4 GHz cordless telephone/
answering system with caller
ID/call waiting
Installation and setup
After installing the battery, you may be able to make and receive short calls.
For best performance, place the handsets in the telephone base or the charger and charge for 16 hours before use.
You can keep the battery charged by returning the handsets to the telephone
base or the charger after use. When the battery is fully depleted, a recharge
takes about 12 hours. The average talk time on a fully charged battery is about
eight hours, and the standby time is approximately five days. Actual battery life
depends on usage conditions and age of battery.
NOTE: Under normal condi tions, the battery should last
around one year. This may
vary depending on usage.
Caution: Use only the supplied rechargeable battery or
replacement battery (model 27910,
part number 89-0099-00-00) or
1. Insert the plug as indicated. Be sure to securely
insert the plug, making
sure matches the colorcoded label inside the battery compartment.
2. Place the battery and wires
inside the compartment.
3. Slide the battery
compartment cover
up until it clicks.
equivalent. To order a replacement
battery, visit our website at www.
telephones.att.com or call 1 (800)
222-3111. In Canada dial 1 (866)
288-4268.
Choose a central location close to a telephone jack and an electrical outlet not
controlled by a wall switch. The telephone base can be placed on a flat surface
or mounted on a standard wall plate. For optimum range and better reception,
place the telephone base in a high and open location.
Avoid placing the telephone base too close to:
• Communication devices such as: personal computers, computer routers, television sets, VCRs, wireless routers (wireless broadband, wi-fi, or 802.11) or
other cordless telephones.
• Excessive heat sources.
• Noise sources such as a window with traffic outside, motors, microwave
ovens, refrigerators, or fluorescent lighting.
• Excessive dust sources such as a workshop or garage.
• Excessive moisture.
• Extremely low temperatures.
• Mechanical vibration or shock such as on top of the washing machine or
work bench.
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