Replacing A Handset - AT&T E5640 User Manual

91-000432-010-000-E560-2 Manual

Replacing a handset

If you are replacing a handset on a system that has the maximum
number of handsets registered (4), or wish to change the
assigned handset number of your registered handsets, you must
first de-register the handsets, then re-register all handsets.
To de-register all handsets (E5640/E5643B/E5644B)
• Unplug the power supply from the base unit.
• Remove all handsets from the charge cradles and
base.
• Plug in the power supply while pressing and holding the
HANDSET LOCATOR
• Continue pressing
CHARGING indicators are lit.
• Release the
All handsets will display:
ENTER BASE ID
Once the base indicators turn off (can take up to 30 seconds),
the handsets have been de-registered from the base, and can now
be re-registered (see page 7).
July04,2005.qxd
button.
HANDSET LOCATOR
button.
HANDSET LOCATOR
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until the IN USE and
Page 7