Yealink SIP-T40G Administrator's Guide

Phone Customization
199
Settings > Preference > Upload Wallpaper > System Wallpaper
Other Phones:
Settings > Preference > Wallpaper
Phone UI
Menu > Basic > Display > Wallpaper
Parameter
expansion_module.backgrounds <y0000000000xx>.cfg
Description
It configures the wallpaper displayed on the connected EXP50 expansion module of the phone.
Permitted
Values
T57W/T54W/T53W/T53:
Default-exp50.jpg, 01-exp50.jpg, 02-exp50.jpg, 03-exp50.jpg, 04-exp50.jpg, 05-exp50.jpg, 06-
exp50.jpg, 07-exp50.jpg, 08-exp50.jpg, 09-exp50.jpg or 10-exp50.jpg or custom wallpaper name (for
example, wallpaper.jpg)
T48U/T46U/T43U:
Default-exp.jpg, 01-exp.jpg, 02-exp.jpg, 03-exp.jpg, 04-exp.jpg, 05-exp.jpg or custom wallpaper name
(for example, wallpaper.jpg)
Default
T57W/T54W/T53W/T53:
Default-exp50.jpg
T48U/T46U/T43U:
Default-exp.jpg
Supported
Devices
T57W, T54W, T53W, T53, T48U, T46U, T43U
Web UI
Settings > Preference > Upload Wallpaper > System Expansion Wallpaper
Phone UI
T57W/T54W/T48U/T46U:
Menu > Basic > Display > EXP Wallpaper > Wallpaper
Parameter
phone_setting.backgrounds_with_dsskey_unfold <y0000000000xx>.cfg
Description
It configures the wallpaper displayed on the phone when the DSS key list is unfolded.
Permitted
Values
T57W/T48S/T48G:
Auto, Default.jpg, 01.jpg, 02.jpg, 03.jpg, 04.jpg, 05.jpg, 06.jpg, 07.jpg, 08.jpg, 09.jpg or 10.jpg or
uploaded custom wallpaper name (for example, wallpaper.jpg)
T48U:
Auto, Default.jpg, 01.jpg, 02.jpg, 03.jpg, 04.jpg, 05.jpg or uploaded custom wallpaper name (for
example, wallpaper.jpg)
Default
Auto
(use the wallpaper configured by the parameter “phone_setting.backgrounds”)
Supported
Devices
T57W, T48U, T48S, T48G
Web UI
Settings > Preference > Wallpaper with Dsskey Unfold
Phone UI
Menu > Basic > Display > Dsskey Wallpaper
Wallpaper Customization
You can configure a custom picture, such as company logo, and then upload the custom picture to the IP phone that
users can choose from when changing the wallpaper for the phone idle screen, expansion module or Dsskey
screen.

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