Yealink CPE80 Administrator's Guide

Administrator’s Guide for Yealink VC110 Video Conferencing Endpoint
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page 261 and H.235 on page 264.
 Ensure that the far site supports the same call protocol as the local site.
Why does the endpoint fail to call the far site via IP address?
 Ensure that at least one call protocol is enabled on both sites. For more information, refer
to Configuring SIP Settingson page 134 and Configuring H.323 Settings on page 138.
 Ensure that the network is connected correctly.
 Ensure that the network is configured correctly. For more information, refer to Configuring
LAN Properties on page 56.
 Ping the IP address of the far site. Contact your system administrator if it fails. For more
information, refer to Using Diagnostic Methods on page 286.
Why doesn’t the status bar of the display device display IP address?
 Check whether the network is available.
 Check whether the LAN property is configured correctly. For more information on LAN
property configuration, refer to Configuring LAN Properties on page 56.
 Check whether the endpoint has enabled the hide IP address feature. For more information
on disabling the hide IP address feature, refer to Hiding IP Address on page 183.
 Check whether the endpoint has configured firewall and NAT correctly. For more
information on, refer to Configuring the Endpoint for Use with a Firewall or NAT on page
86.
Why does the network keep losing packets?
 Check whether the network is available and the LED indicator on the left of the Internet
port illuminates green.
 Try to use the low speed connection to check whether packets are lost. Deficient
bandwidth is an important reason for packet loss.
 Check the configuration of the network speed and duplex mode on the endpoint, switch
and router.
Camera Issues
Why can’t I adjust the camera angle and focus?
 You can adjust the camera when the endpoint is idle or during a call. The camera cannot
be adjusted when the endpoint is in the menu screen.
 Ensure that the batteries in the remote control are in good working condition, and
installed correctly.
 Aim the remote control at the sensor when operating the unit.

Yealink CPE80 Specifications

General

Brand	Yealink
Model	CPE80
Category	Conference System
Language	English