The USB charging feature supports the following mobile devices:
•
Apple
◦
iPAD 1, 2,3, and 4
◦
iPAD Air
◦
iPAD mini
◦
iPhone 4 and iPhone 5 series
•
Samsung
◦
Tablet
◦
Note 2 and Note 3 series
◦
Galaxy S4 series
Other mobile devices are supported but there may be instances of incompatibility where they will not get
charged.
Note
When charging your mobile device using your Cisco IP Phone, the following conditions apply:
•
When you plug in a tablet, it takes about 3 seconds for the charging to begin. When it gets fully charged
or nearly fully charged, the charging icon does not display and the battery capacity may decrease over
time.
You can force the charging icon to display by unplugging and re-plugging in your device.
Note
•
In the PoE mode, when you plug-in a tablet, it does not display the charging icon and the battery capacity
may decrease over time.
•
If the battery capacity of your mobile device is lower than 90% when you plug it in, you will notice that
charging starts immediately, stops for 2 seconds, and then resumes.
•
If you unplug your tablet and immediately plug-in a USB headset to the tablet, there will be a delay of
3 seconds before the phone recognizes the USB headset.
•
When more than one Cisco IP Phone 8800 Key Expansion Module is attached, the back USB port cannot
fast-charge the device.
Cisco IP Phone 8811, 8841, 8851, 8851NR, and 8861 User Guide for Cisco Unified Communications Manager
10.5
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Accessories
Mobile Device Charging