Yealink MP56 User Manual page 96

• If the device is left unused for a rather long time, disconnect it from the power supply and unplug the
power plug.
• When there is smoke emitted from the device, or some abnormal noise or smell, disconnect the device
from the power supply, and unplug the power plug immediately. Contact the specified maintenance
center for repair.
• Do not insert any object into equipment slots that is not part of the product or auxiliary product.
• Before connecting a cable, connect the grounding cable of the device first. Do not disconnect the
grounding cable until you disconnect all other cables.
Cleaning Requirements
• Before cleaning the device, stop using it and disconnect it from the power supply.
• Use a piece of soft, dry and anti-static cloth to clean the device.
• Keep the power plug clean and dry. Using a dirty or wet power plug may lead to electric shock or other
perils.
| Regulatory Notices | 96