AT&T 882 - Manual (Page 7)

Installation
3
AT&T 882 Manual
1 Install Batteries
Install Batteries
DO NOT UNPLUG AC POWER WHILE CHANGING BATTERIES.
The phone may lose information stored in memory if there is no AC power while
installing batteries.
When replacing the batteries insert four heavy duty AA batteries.
Always use four new batteries
NOTE: The phone WILL NOT WORK
without AC power.
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