Yealink SIP-T48S User Manual

Customizing Your Phone
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This field appears only if Screensaver Type is set to Custom.
4. The custom picture appears in Screensaver list. You can only delete the custom picture by
clicking Del in the Screensaver field.
Note
Configuring the Screen Saver
The screen saver wait time can be configured from the following options:
 Never: Screen saver is deactivated.
 15s, 30s, 1min, 2min, 5min, 10min or 30min: The screen saver will automatically start
each time your phone is idle for a designated amount of time.
To configure the screen saver via phone user interface:
1. Tap ->Basic->Display->Screensaver.
2. Tap the gray box of the Wait Time field, and then select the desired wait time from the
pull-down list.
3. Tap the On or Off radio box of the Display Clock field.
4. Tap the gray box of the Screensaver Type field and then select the desired screen saver
type from the pull-down list.
You can only upload one custom image at a time via web user interface.

Yealink SIP-T48S Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Keypad illumination	Yes
Display diagonal	7 \
Display resolution	800 x 480 pixels
AC adapter input voltage	100 - 240 V
AC adapter output current	2 A
AC adapter output voltage	5 V
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Front camera	No
Voice codecs	CNG, G.711Mu, G.711a, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Lines quantity	16 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	16
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Keypad number of keys	42
Security algorithms	AES
Networking standards	IEEE 802.3af
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	SIP v1, SIP v2, LLDP/CDP/DHCP, OpenVPN, IEEE802.1X, IPv6, HTTPS
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	225 mm
Width	266 mm
Height	185 mm
Package depth	263 mm
Package width	324 mm
Package height	128 mm