Yealink T42S User Manual

Customizing Your Phone
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On the T48S/T48G phones, tap the desired picture to preview.
3. Select Set as > Set as wallpaper.
4. Select OK.
The phone background image will change to the selected picture.
Adding a Dsskey Screen Wallpaper from a USB Flash Drive
On the T48S/T48G phones, you can set a picture that is stored in the USB flash drive as the background image for the
dsskey screen.
We recommend that you add a picture less than 2.0 megapixels. Either the smaller or larger picture will be scaled pro-
portionally to fit the screen.
Before You Begin
Make sure that the picture is in the root directory of your USB flash drive, and the USB flash drive is connected to your
phone successfully.
Procedure
1. Navigate to Menu > USB > Browse Photo.
2. Select the desired picture.
3. Select Set as > Set as dsskey wallpaper.
4. Select OK.
The background image of dsskey screen will change to the selected picture.
Adjusting Transparency
If the background picture affects the idle screen display, you can change the transparency to make the texts of the line
key and status bar easier to read.
It is only applicable to the T48S/T48G phones.
Procedure
1. Navigate to Menu > Basic > Display > Transparency.
2. Select the desired value from the Transparency field.
3. Select Save.
The following figure shows an example of the screen display when the transparency is set to 80%:

Yealink T42S Specifications

General

Manual	Yes
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Lines quantity	12 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Voice codecs	CNG, G.711Mu, G.711a, G.723.1, G.726, G.729ab, VAD, iLBC
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	2.7 \
Display resolution	192 x 64 pixels
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Volume control	Digital
Number of programmable keys	6
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
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

Weight and Dimensions

Depth	189 mm
Width	212 mm
Height	175 mm
Package depth	223 mm
Package width	246 mm
Package height	120 mm