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Yealink SIP-T48U Administrator's Guide

Yealink SIP-T48U
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Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
224
Permitted
Values
0-Disabled, the phone obtains time and date from the NTP server.
1-Enabled
Default
0
Web UI
Settings > Time&Date > Manual Time
Phone UI
Color Screen Phones:
Menu > Basic > Time & Date > General > Manual Settings
Black-and-white Screen Phones:
Menu > Settings > Basic Settings > Time & Date > Manual Settings
Note: After the device reboots, it will be forcibly switched to obtain the time and date from the NTP server.
Time and Date Format Configuration
You can customize the time and date by choosing between a variety of time and date formats, including options to
date format with the day, month, or year, and time format in 12 hours or 24 hours, or you can also custom the date
format as required.
The following table lists the parameters you can use to configure time and date format.
Parameter
local_time.time_format <y0000000000xx>.cfg
Description
It configures the time format.
Permitted
Values
0-Hour 12, the time will be displayed in 12-hour format with AM or PM specified.
1-Hour 24, the time will be displayed in 24-hour format (for example, 2:00 PM displays as 14:00).
Default
1
Web UI
Settings > Time&Date > Time Format
Phone UI
Color Screen Phones:
Menu > Basic > Time & Date > Time & Date Format > Time Format
Black-and-white Screen Phones:
Menu > Settings > Basic Settings > Time&Date > Time & Date Format > Time Format
Parameter
local_time.date_format <y0000000000xx>.cfg
Description
It configures the date format.
Note: The value configured by the parameter “lcl.datetime.date.format” takes precedence over that
configured by this parameter.
Permitted
Values
0-WWW MMM DD
1-DD-MMM-YY
2-YYYY-MM-DD
3-DD/MM/YYYY
4-MM/DD/YY
5-DD MMM YYYY
6-WWW DD MMM
20-Custom format configured by "lcl.datetime.date.format", for example, DD.MM.YYYY

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Yealink SIP-T48U Specifications

General IconGeneral
Handset typeWired handset
Product typeIP Phone
Product colorGray
USB 2.0 ports quantityUSB 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 supportYes
Ethernet LAN (RJ-45) ports2
Display diagonal7 \
Display resolution800 x 480 pixels
Lines quantity- lines
Phonebook capacity1000 entries
Number of VoIP accounts16
Voice codecsAGC, AJB, AMR-WB, CNG, G.711, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Security algorithmsAES, HTTPS, SRTP, TLS
Ethernet LAN data rates10, 100, 1000 Mbit/s
Ethernet LAN interface typeGigabit Ethernet
Front camera-
AC adapter input voltage100 - 240 V
Operating temperature (T-T)0 - 40 °C
Operating relative humidity (H-H)10 - 95 %
Keypad number of keys29
Number of handles included1 pc(s)
Harmonized System (HS) code85171800
Weight and Dimensions IconWeight and Dimensions
Width226 mm
Height185 mm

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