THE BASIC PRINCIPLES OF YEALINK MEETINGBOARD 65

three. Confirm cable link: Be sure that the cable concerning the Yealink MeetingBoard 86 as well as Yealink device is related the right way. Whether it is linked incorrectly, disconnect and reconnect the cable correctly.To make certain correct Procedure in the Yealink MeetingBoard 86, it is necessary to use it in just the desired working temperatur