Cisco 9971 - Cisco Unified IP Phone Cleaning

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Cisco Unified IP Phone Cleaning
To clean your Cisco Unified IP Phone, use only a dry soft cloth to gently wipe the phone and the phone screen.
Do not apply liquids or powders directly to the phone. As with all nonweatherproof electronics, liquids and
powders can damage the components and cause failures.
When the phone is in sleep mode, the touchscreen is blank and the Select button is not lit. When the phone
is in this condition, you can clean the screen, as long as you know that the phone will remain asleep until after
you finish cleaning. If the phone is likely to wake up during cleaning, wake it up or wait until it is awake
before following the preceding cleaning instructions.
Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager
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Cisco Unified IP Phone Cleaning