Yealink SIP-T48S User Manual

Customizing Your Phone
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5. Click Confirm to accept the change.
Power Saving
The power saving feature is used to turn off the backlight and screen to conserve energy. The IP
phone enters power-saving mode after it has been idle for a certain period of time.
The IP phone will exit power-saving mode if a phone event occurs:
 Press any key.
 Tap the touch screen.
 Pick up the handset.
 Hang up the handset.
 There is an incoming call.
 A new prompt (e.g., missed call, new voice mail or forwarded call).
 The status of BLF key changes.
If the screen saver is enabled on your phone, power-saving mode will still occur.
You can configure the following power-saving settings:
 Office Hour
 Idle Timeout (minutes)
Note
Enabling the Power Saving via Web User Interface
The office hour and idle timeout (minutes) settings work only if the power saving feature is
enabled.
Power saving is configurable via web user interface only.

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