Yealink SIP-T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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3. Click the Convert button.
Then you can find the DOB logo files in the adv directory.
Custom Logo Configuration
The following table lists the parameters you can use to configure the custom logo.
Parameter
phone_setting.lcd_logo.mode <y0000000000xx>.cfg
Description
It configures the logo shown on the LCD screen.
Permitted
Values
0-Off, the phone is not allowed to display a logo.
1-System Logo, the LCD screen will display the system logo.
2-Custom Logo, the LCD screen will display the custom logo (you need to upload a custom logo file to
the IP phone).
Default
0
Supported
Devices
All black-and-white screen phones
Web UI
Features > General Information > Use Logo
Parameter
lcd_logo.url <y0000000000xx>.cfg
Description
It configures the access URL of the custom logo file.
Note: It works only if “phone_setting.lcd_logo.mode” is set to 2 (Custom Logo).

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