User guide
45
Technical support
For additional support information please visit the One Talk support site (verizonwireless.com/support/one-talk/) for the latest guides, FAQs,
product documents and more.
Important customer information
To avoid electric shock, use caution when connecting cables. For example, do not connect safety extra-low voltage (SELV) circuits to telephone-
network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits.
Some LAN and WAN ports both use RJ-45 connectors.
To avoid electric shock, do not operate the product or connect or disconnect cables during electrical storms. To avoid electric shock, do not use this
product in or near water.
To reduce the risk of fire or overheating, keep this product in well-ventilated areas, away from radiators or other heat sources. Do not block cooling
vents.
The plug-socket combination must be accessible at all times because it serves as the main power-disconnecting device.
Use only the manufacturer-provided AC adaptor approved for use with this product. Use of another AC adaptor may cause a fire or explosion.
This product relies on short-circuit (overcurrent) protection installed in your home or office. Ensure that a fuse or circuit breaker no larger than 120
VAC, 15 A U.S. is used on the phase conductors (all current carrying conductors).
Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions:
1.
When the power cord or plug is damaged or frayed
2.
If liquid has been spilled into the product
3.
If the product has been exposed to rain or water
4.
If the product does not operate normally when the operating instructions are followed. Adjust only those controls that are covered by the
operating instructions, since improper adjustment of other controls may result in damage and will often require extensive work by a qualified
technician to restore the product to normal condition
WEEE warning
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 waste electrical and electronic equipment (WEEE) as unsorted municipal waste and collect such WEEE separately.
Disclaimer
The specifications and information regarding the products in this guide are subject to change without notice. All statements, information, and
recommendations in this guide are believed to be accurate and presented without warranty of any kind, express or implied. Users must take full
responsibility for their application of products.
Yealink Network Technology CO., LTD., makes no warranty of any kind with regard to this guide, including, but not limited to, the implied
warranties of merchantability and fitness for a particular purpose. Yealink Network Technology CO., LTD., shall not be liable for errors contained
herein nor for incidental or consequential damages in connection with the furnishing, performance, or use of this guide.
Summary of Contents for One Talk W78B
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