Telephone User Manual

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7. Batteries
7.1 Battery Replacement
a. Make sure the AC cord is attached to the telephone and to a working electrical outlet.
b. Turn the telephone over.
c. Remove desk pedestal/wall mount bracket if attached.
d. Remove battery door cover by using the tip of a ball-point pen, or paper clip, or similar object to
release the battery door tab.
e. Remove the old battery.
f. Insert 3 new AAA size alkaline batteries. Note that we recommend ONLY alkaline batteries.
g. Close the battery cover.
7.2 Power Failure Operation
Your 2740 telephone uses AC power from a standard wall outlet. As long as the telephone is connected to
a wall outlet, it will operate using the AC power. Please remember to plug your telephone into a wall
outlet that is not controlled by a wall switch.
If AC power is disconnected or there is a power failure, the telephone automatically switches to battery
operation for approximately two hours. When the power is restored, the telephone automatically switches
back to AC power and resumes normal operation.
If the battery is missing or low on power when AC power is lost, the telephone will not function. However,
all feature settings and memory numbers will be maintained.
Note: It is recommended to always have at least one telephone connected that does not require battery
power, so that you are always sure to have use of a telephone during a power failure.