Yealink SIP-T38G Administrator's Guide

Troubleshooting
207
This chapter provides an administrator with general information for troubleshooting
some most common problems that may encounter while using the SIP-T3xG IP phones.
The IP phone can provide feedback in a variety of forms such as log files, packets, status
indicators and so on, which helps an administrator quickly find out the cause of failure
and do the troubleshooting more easily.
The following are some methods for you to learn more about the working status of your
IP phone and quickly find out the cause of failure.
 Viewing Log Files
 Capturing Packets
 Enabling the Watch Dog Feature
 Getting Information from Status Indicators
 Analyzing Configuration Files
The IP phone can log various events to log files. So if your IP phone encounters some
problems, commonly the log files are used. You can export the log files to a syslog
server or the local system. You can specify the location for which to save log files for
troubleshooting purposes using the configuration files or the web user interface. You can
also set the system log level to specify the severity level of the logs to be reported to a
log file. The system log level is 3 by default (Changes to this parameter via web user
interface require a reboot).
In the configuration files, you can use the following parameters to configure log settings:
 syslog.server--Specify the IP address of the syslog server where to export the log
files.
 syslog.log_level--Specify the severity level of the logs to be reported to a log file.
For more information about the log setting configuration parameters, refer to Log
Settings on page 316.
To configure the level of the log 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