Yealink SIP-T41S Administrator's Guide

Troubleshooting Methods
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3. Select 6 from the Local Log Level drop-down menu.
The default local log level is “3”.
4. Enter the limit size of the log files in the Max Log File Size field.
5. Click Confirm to accept the change.
6.
Reproduce the issue.
7. Click Export to open the file download window, and then save the file to your local system.
A diagnostic file named <MAC>-syslog.zip is successfully exported to your local system.
Uploading Log to the USB Flash Drive
The phone log can be uploaded to the connected USB flash drive.
It is not applicable to T48G/T46G/T42G/T41P/T40P/T40G/T29G/T23P/T23G//T21(P) E2/T19(P) E2 phones.
Procedure
1. From the web user interface, navigate to Settings > Configuration.
2. In the Enable Local Log field, select Enabled or ON.
3. In the USB Auto Exporting Syslog field, select Enabled or ON.
4. Select the desired value from the Local Log Level drop-down menu.
The default local log level is “3”.
4. Enter the limit size of the log files in the Max Log File Size field.
5. Click Confirm to accept the change.
6.
Reproduce the issue.
The log files are uploaded to your USB flash drive.
Viewing the Log Files
You can verify whether you got the correct log through the following key fields:
l <0+emerg >
l <1+alert >
l <2+crit >
l <3+error >
l <4+warning >
l <5+notice >
l <6+info >
The default local log level is 3.
The following figure shows a portion of a boot log file (for example, boot.log):

Yealink SIP-T41S Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Keypad illumination	Yes
Wi-Fi	No
Networking standards	IEEE 802.3af
Ethernet LAN data rates	10, 100 Mbit/s
Ethernet LAN interface type	Fast Ethernet
Supported network protocols	SIP v1, SIP v2, LLDP/CDP/DHCP, OpenVPN, IEEE802.1X, IPv6, FTP/TFTP/HTTP/HTTPS
Volume control	Digital
Number of programmable keys	6
Lines quantity	6 lines
Phonebook capacity	1000 entries
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Input frequency	50/60 Hz
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Display diagonal	2.7 \
Display resolution	192 x 64 pixels
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Voice codecs	CNG, G.711Mu, G.711a, G.723.1, G.726, G.729ab, VAD, iLBC
Certification	CE
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	189 mm
Width	212 mm
Height	175 mm
Package depth	223 mm
Package width	246 mm
Package height	120 mm