Patent Information
China, the United States, EU (European Union) and other countries are protecting one or more patents of accom-
panying products and/or patents being applied by Yealink.
Customer Feedback
We are striving to improve our documentation quality and we appreciate your feedback. Email your opinions and com-
ments to DocsFeedback@yealink.com.
Technical Support
Visit Yealink WIKI (http://support.yealink.com/) for the latest firmware, guides, FAQ, Product documents, and more.
For better service, we sincerely recommend that you use Yealink Ticketing system (https://ticket.yealink.com) to submit
all your technical issues.
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