AT&T ML17929 User Manual page 16

Getting started
Installation options
2. Hold down the switch hook on the telephone base, then slide the handset
tab upwards to remove it from the slot. Rotate the handset tab 1800 degrees.
Push the handset tab down into the slot until it locks into position.
Switch hook
Handset tab
3. Follow the steps in Telephone base installation on pages 4-6 to install
your telephone for tabletop use.
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