Yealink SIP-T48U Administrator's Guide

Phone Customization
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If it is set to 0 and “features.power_saving.power_led_flash.off_time” is not set to 0, the power LED
indicator will be off when the phone enters the power-saving mode.
Permitted
Values
0, Integer from 100 to 10000
Default
500
Supported
Devices
All color screen phones
Web UI
Features > Power LED > Power Saving Light Time
Parameter
features.power_saving.power_led_flash.off_time <y0000000000xx>.cfg
Description
It configures the period of time (in milliseconds) when the power LED indicator is off in the power-sav-
ing mode.
If it is set to 0, the power LED indicator will be on when the phone enters the power-saving mode.
Permitted
Values
0, Integer from 100 to 10000
Default
3000
Supported
Devices
All color screen phones
Web UI
Features > Power LED > Power Saving Dark Time
Search Source List in Dialing
The search source list in dialing allows you to search entries from the source list when the phone is on the pre-dial-
ing/dialing screen. You can select the desired entry to dial out quickly.
The following shows search results displayed on T46S/G phones:
The search source list can be configured using a supplied super search template file (super_search.xml).
Topics
Search Source File Customization
Search Source List Configuration
Search Source File Customization
You can ask the distributor or Yealink FAE for super search template. You can also obtain the super search tem-
plate online: http://support.yealink.com/documentFront/forwardToDocumentFrontDisplayPage.
Topics
Search Source File Attributes
Customizing Search Source File

Yealink SIP-T48U Specifications

General

Handset type	Wired handset
Product type	IP Phone
Product color	Gray
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Expansion module support	Yes
Ethernet LAN (RJ-45) ports	2
Display diagonal	7 \
Display resolution	800 x 480 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	16
Voice codecs	AGC, AJB, AMR-WB, CNG, G.711, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Security algorithms	AES, HTTPS, SRTP, TLS
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Front camera	-
AC adapter input voltage	100 - 240 V
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Keypad number of keys	29
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Width	226 mm
Height	185 mm