AT&T E1828B, E5828B

Appendix

Important safety instructions

This symbol is to alert you to important operating or servicing instructions that may

appear in this user’s manual. Always follow basic safety precautions when using this product to

reduce the risk of injury, fire, or electric shock.

Safety information

• Read and understand all instructions in the user’s manual. Observe all

markings on the product.

• Avoid using a telephone during a thunderstorm. There may be a slight

chance of electric shock from lightning.

• Do not use a telephone in the vicinity of a gas leak. If you suspect a gas

leak, report it immediately, but use a telephone away from the area where

gas is leaking. If this product is a cordless model, make sure the base is

also away from the area.

• Do not use this product near water, or when you are wet. For example,

do not use it in a wet basement or shower, or next to a swimming pool,

bathtub, kitchen sink, or laundry tub. Do not use liquids or aerosol sprays

for cleaning. If the product comes in contact with any liquids, unplug any

line or power cord immediately. Do not plug the product back in until it has

dried thoroughly.

• Install this product in a protected location where no one can trip over

any line or power cords. Protect cords from damage or abrasion.

• If this product does not operate normally, read Troubleshooting in this

user’s manual. If you cannot solve the problem, or if the product is dam-

aged, refer to the limited warranty. Do not open this product except as may

be directed in your user’s manual. Opening the product or reassembling it

incorrectly may expose you to hazardous voltages or other risks.

• If this product has user-replaceable batteries, replace batteries only

as described in your user’s manual. Do not burn or puncture batteries

— they contain caustic chemicals.

• If this product has a three-prong (grounding) plug or a polarized plug

with one wide prong, it may not fit in non-polarized outlets. Do not defeat

the purpose of these plugs. If they do not fit in your outlet, the outlet

should be replaced by an electrician.

CAUTION: Use only the power adapter provided with this product. To obtain a replace-

ment, call 1 (800) 222–3111. In Canada dial 1 (866) 288-4268. Or visit our website at