Yealink SIP-T52S Administrator's Guide

Troubleshooting
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It shows the target IP or URL, the maximum number of hops that will be allowed, and the
size of the packets being sent.
4. Press or to view more network status information or press the Back soft key to
back to the previous screen.
A traceroute can end with one of several error indications indicating why the traceroute cannot
proceed. The following table shows the possible error messages:
Error Message
Meaning
* * *
Target unreachable.
!H
Host unreachable.
!N
Network unreachable.
Troubleshooting Solutions
This section describes solutions to common issues that may occur while using the IP phone.
Upon encountering a scenario not listed in this section, contact your Yealink reseller for further
support.
IP Address Issues
Why doesn’t the IP phone get an IP address?
Do one of the following:
If your phone connects to the wired network:
 Ensure that the Ethernet cable is plugged into the Internet port on the IP phone and the
Ethernet cable is not loose.
 Ensure that the Ethernet cable is not damaged.
 Ensure that the IP address and related network parameters are set correctly.
 Ensure that your network switch or hub is operational.
 Ensure that the Wi-Fi feature is disabled.
If your phone connects to the wireless network:
 If the network is secure, ensure the entered password is right.

Yealink SIP-T52S Specifications

General

Touchscreen	-
Display diagonal	2.8 \
Backlight display	Yes
Display resolution	320 x 240 pixels
Lines quantity	16 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
AC adapter input voltage	100 - 240 V
Bluetooth version	2.1+EDR
Security algorithms	802.1x RADIUS, HTTPS, MD5
Ethernet LAN interface type	Gigabit Ethernet
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Voice codecs	G.722, G.723, G.723.1, G.726, OPUS, iLBC
Volume control	Digital
Operating temperature (T-T)	-10 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Front camera	No
Operating system installed	Linux

Weight and Dimensions

Depth	212 mm
Width	211.6 mm
Height	166.8 mm