Yealink SIP-T41S Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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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:
Note: On T54W/T46U/T46S/T46G/T29G phones, the line and soft key labels display over the wallpaper picture.
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)
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
Devices
All color screen phones
Web UI
T57W/T54W/T48U/T46U:

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