
Regulatory Notices
Operating Ambient Temperatures
• Operating temperature: +14 to 122°F (-10 to 50°C)
• Relative humidity: 5% to 90%, noncondensing
• Storage temperature: -22 to +160°F (-30 to +70°C)
Warranty
Our product warranty is limited only to the unit itself, when used normally in 
accordance with the operating instructions and the system environment. We are 
not liable for damage or loss resulting from the use of this product, or for any claim 
from a third party. We are not liable for problems with Yealink device arising from 
the use of this product; we are not liable for nancial damages, lost prots, claims 
from third parties, etc., arising from the use of this product.
Explanation of the symbols
• DC symbol 
 is the DC voltage symbol.
• WEEE Warning symbol 
To avoid the potential effects on the environment and human health as a 
result of the presence of hazardous substances in electrical and electronic 
equipment, end users of electrical and electronic equipment should 
understand the meaning of the crossed-out wheeled bin symbol. Do not dispose of 
WEEE as unsorted municipal waste and have to collect such WEEE separately. 
Restriction of Hazardous Substances Directive (RoHS)
This device complies with the requirements of the EU RoHS Directive. Statements 
Safety Instructions
Save these instructions. Read these safety instructions before use!
 General Requirements
• Before you install and use the device, read the safety instructions carefully 
and observe the situation during operation.
• During the process of storage, transportation, and operation, please always 
keep the device dry and clean, avoid collision and crash.
• Please attempt not to dismantle the device by yourself. In case of any 
discrepancy, please contact the appointed maintenance center for repair.
• Please refer to the relevant laws and statutes while using the device. Legal 
rights of others should be respected as well.
 Environmental Requirements
• Place the device at a well-ventilated place. Do not expose the device under 
direct sunlight.
• Keep the device dry and free of dusts.
• Do not place the device on or near any inflammable or fire-vulnerable 
object, such as rubber-made materials.
• Keep the device away from any heat source or bare re, such as a candle 
or an electric heater.
 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 
accidental swallowing.
• 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 of the device. Please use the provided surge protection power 
socket only.
• Before plugging or unplugging any cable, make sure that your hands are 
completely dry.
• Do not spill liquid of any kind on the product or use the equipment near 
water, for example, near a bathtub, washbowl, kitchen sink, wet basement 
or near a swimming pool.
• During a thunderstorm, stop using the device and disconnect it from 
the power supply. 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 
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 specied 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 rst. 
Do not disconnect the grounding cable until you disconnect all other cables.
 Cleaning Requirements
• Before cleaning the device, 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.
Troubleshooting
The unit cannot supply power to Yealink device.
There is a bad connection with the plug.
1. Clean the plug with a dry cloth.
2. Connect it to another wall outlet.
The usage environment is out of operating temperature range.
1. Use in the operating temperature range.
The cable between the unit and the Yealink device is connected incorrectly.
1. Connect the cable correctly.
You cannot connect the cable properly.
1. You may have connected a wrong Yealink device.
2. Use the correct power supply.
Some dust, etc., may be in the port.
1. Clean the port.
Contact your dealer or authorized service facility for any further questions.
FCC Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the 
following two conditions: (1) this device may not cause harmful interference, and (2) 
this device must accept any interference received, including interference that may 
cause undesired operation.
Any Changes or modications not expressly approved by the party responsible for 
compliance could void the user’s authority to operate the equipment.
IC Statement
1.This device complies with Industry Canada’s licence-exempt RSSs. Operation is 
subject to the following two conditions: 
(1) this device may not cause interference; and 
(2) this device must accept any interference, including interference that may cause 
undesired operation of the device. CAN ICES-3(B)
Le présent appareil est conforme aux CNR d’Industrie Canada applicables 
aux appareils radio exempts de licence. L’exploitation est autorisée aux deux 
conditions suivantes : 
(1) l’appareil ne doit pas produire de brouillage; 
(2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, 
même si le brouillage est susceptible d’en compromettre le fonctionnement.NMB-
3(B)
2.This device meets CS03 Part V.
‘’This device meets the applicable Innovation, Science and Economic Development
Canada technical specications. / Ce produit répond à la innovation, des sciences
et de .Développement économique Canada spécications techniques applicables.”
Contact Information
YEALINK NETWORK TECHNOLOGY CO.,LTD.
309, 3rd Floor, No.16, Yun Ding North Road, Huli District, Xiamen City, Fujian, P.R.C
YEALINK (EUROPE) NETWORK TECHNOLOGY B.V.
Strawinskylaan 3127, Atrium Building, 8th floor, 1077ZX Amsterdam, The 
Netherlands
YEALINK (USA) NETWORK TECHNOLOGY CO., LTD.
999 Peachtree Street Suite 2300, Fulton, Atlanta, GA, 30309, USA
Made in China