Yealink SIP-T40G 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-T40G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Wall mountable	Yes
Wi-Fi	No
Security algorithms	AES, HTTPS, SSL/TLS
Networking standards	IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP, TFTP, HTTP, HTTPS
Voice codecs	G.711, G.711a, G.711u, G.722, G.726, G.729ab
RJ-11 ports quantity	1
Ethernet LAN (RJ-45) ports	2
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	1.6 W
Certification	CE, FCC, ISO 9001
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 90 %
Volume control	Digital
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Lines quantity	3 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	3
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	175 mm
Width	212 mm
Height	54 mm