Installation preparation
If you subscribe to high speed Internet service (DSL – digital subscriber line) through your telephone line, you must
install a DSL filter between each telephone line cord and telephone wall jack (pages 3 and 4). The filter prevents
noise and caller ID problems caused by DSL interference. Please contact your DSL service provider for more
information about DSL filters. Your product may be shipped with a protective sticker covering the telephone base
display – remove it before use. For customer service or product information, visit our website at
www.telephones.att.com or call 1 (800) 222-3111. In Canada, dial 1 (866) 288-4268.
Avoid placing the telephone base too close to:
Communication devices such as television sets, VCRs, or 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 temperature.
Mechanical vibration or shock such as on top of a washing machine or work bench.
This quick start guide provides basic instructions. For additional installation options and complete instructions that
enable you to use all features of this telephone, refer to your AT&T ML17929 Two-line corded telephone with caller
ID/call waiting user’s manual.
Telephone installation
Telephone base installation
1. Install the mounting bracket for tabletop use.
Option 1: To install your telephone in a low tabletop position, insert the fixed tabs of the mounting bracket into
the slots labeled a. Press the flexible tabs into the slots labeled b until they click into place.
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