Yealink SIP-T38G Administrator's Guide

Troubleshooting
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2. Select the desired value from the pull-down list of Watch Dog.
3. Click Confirm to accept the change.
In some cases, the status indicators consist of power LED, message key indicator, line
key indicator, headset key indicator and the on-screen icon/error messages, which are
useful for you to figure out the cause of your phone’s failure.
The following are two examples of getting the device information from status indicators:
 If a LINK failure of the IP phone is detected, a prompting message ―Network
Unavailable‖ and the icon indicate the current network LINK status.
 If the power LED is off, which indicates the IP phone is powered off.
For more information about the icons, refer to Reading Icons on page 14.
Sometimes, configuration errors may lead to your phone’s failure. You can export
configuration files to view the current configuration of the IP phone and troubleshoot as
necessary.
To export configuration files via web user interface:
1. Click on Phone->Configuration.

Yealink SIP-T38G Specifications

General

Expansion module support	Yes
Ethernet LAN (RJ-45) ports	2
Keypad number of keys	48
Touchscreen	-
Display resolution	480 x 272 pixels
Display number of colors	16.78 million colors
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
Voice codecs	G.711, G.722, G.723.1, G.726
Bluetooth	No
Security algorithms	802.1x RADIUS, HTTPS, SSL/TLS
AC adapter input voltage	100 - 240 V
AC adapter output voltage	5 V
Power consumption (typical)	4.6 W
Operating relative humidity (H-H)	10 - 95 %
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Compliance industry standards	IEEE 802.3af
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	204 mm
Width	273 mm
Height	42 mm
Weight	1050 g