User Guide for the T48S Skype for Business phone250 Please place no heavy objects on the device in case of damageand deformationcaused by the heavy load. Keep at least 10 cm between the device and the closest object for heat dissipation. Do not place the device on or near any inflammable or fire-vulnerable object, suchas rubber-made materials. Keep the device away from any heat source or bare fire, such as a candle or anelectric heater. Keep the device away from any household appliance with strong magnetic field orelectromagnetic field, such as a microwave oven or a refrigerator.Operating Requirements Do not let a child operate the device without guidance. Do not let a child play with the device or any accessory in case of accidentalswallowing. Please use the accessories provided or authorized by the manufacturer only. The power supply of the device shall meet the requirements of the input voltage ofthe device. Pleaseuse the provided surge protection power socket only. Before plugging or unplugging any cable, make sure that your hands arecompletely dry. Do not spill liquid of any kind on the product or use the equipment near water, forexample, near a bathtub, washbowl, kitchen sink, wet basement or near aswimming pool. Do not tread on, pull, or over-bend any cable in case of malfunction of the device. During a thunderstorm, stop using the device and disconnect it from the powersupply. Unplug the power plug and the Asymmetric Digital Subscriber Line (ADSL)twisted pair (the radio frequency cable) to avoid lightning strike. If the device is left unused for a rather long time, disconnect it from the powersupply 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 plugimmediately. Contact the specified maintenance center for repair. Do not insert any object into equipment slots that is not part of the product orauxiliary product. Before connecting a cable, connect the grounding cable of the device first. Do notdisconnect 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 toelectric shock or other perils.
