Yealink SIP-T31G Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
199
Wallpaper
Wallpaper is a picture used as the background of the phone. The phone comes with a default picture. You can
change it to a built-in picture or custom wallpaper from personal pictures.
The wallpaper is only applicable to color screen phones and expansion module EXP50 (connected to the
T57W/T54W/T53W/T53 phones)/expansion module EXP43 (connected to the T48U/T46U/T43U phones).
Topics
Wallpaper Configuration
Wallpaper Customization
Adding a Wallpaper from a USB Flash Drive
Example: Setting a Custom Picture as Wallpaper
Wallpaper Configuration
You can change the wallpaper to any built-in picture or custom picture.
On T57W/T48U/T48S/T48G phones, you can also separately set the wallpaper when the DSS key list is unfolded,
avoiding the display of the line key labels to be blocked by the background picture.
The following show wallpaper set on T48S phones:
The following table lists the parameters you can use to change the wallpaper.
Parameter
phone_setting.backgrounds <y0000000000xx>.cfg
Description
It configures the wallpaper displayed on the phone idle screen.
Permitted
Values
T57W/T54W/T48U:
Default.jpg, 01.jpg, 02.jpg, 03.jpg, 04.jpg, 05.jpg or uploaded custom wallpaper name (for example,
wallpaper.jpg)
T46U:
Default.png, 01.png, 02.png, 03.png, 04.png, 05.png or uploaded custom wallpaper name (for
example, wallpaper.png)
T33P/T33G:
Default.jpg, 1.jpg, 2.jpg, 3.jpg, 4.jpg, 5.jpg or uploaded custom wallpaper name (for example, wall-
paper.jpg)
Other Phones:
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)
Default
Default.jpg (Default.png for T46U)
Supported
All color screen phones

Yealink SIP-T31G Specifications

General

Mounting kit	Yes
Number of handles included	1 pc(s)
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Voice codecs	G.722, G.729, AGC, G.729A, AJB, PLC, G.711Mu, VAD, G.711a, G.723.1, G.726, iLBC, CNG, OPUS
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	3 W
Lines quantity	2 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	2
Sustainability certificates	RoHS, REACH
Networking standards	IEEE 802.3af, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	189 mm
Width	188 mm
Height	162 mm
Package depth	210 mm
Package width	213 mm
Package height	103 mm