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Yealink SIP-T48U Administrator's Guide

Yealink SIP-T48U
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Phone Customization
249
Web UI
Features > Power LED > Mute Power Light Flash
Parameter
phone_setting.hold_and_held_power_led_flash_
enable
<y0000000000xx>.cfg
Description
It enables or disables the power LED indicator to flash when a call is placed on hold or is held.
Permitted
Values
0-Disabled (power LED indicator does not flash)
1-Enabled ( power LED indicator fast flashes (0.5s) red)
For T19(P) E2 phones:
0-Disabled (power LED indicator does not flash)
1-Enabled ( power LED indicator fast flashes (0.5s) yellow)
Default
0
Supported
Devices
All phones except CP920
Web UI
Features > Power LED > Hold/Held Power Light Flash
Parameter
phone_setting.talk_and_dial_power_led_enable <y0000000000xx>.cfg
Description
It enables or disables the power LED indicator to be turned on when the phone is busy.
Permitted
Values
0-Disabled (power LED indicator is off)
1-Enabled (power LED indicator glows red)
For T19(P) E2 phones:
0-Disabled (power LED indicator is off)
1-Enabled (power LED indicator glows yellow)
Default
0
Supported
Devices
All phones except CP920
Web UI
Features > Power LED > Talk/Dial Power Light On
Parameter
phone_setting.missed_call_power_led_flash.en-
able
<y0000000000xx>.cfg
Description
It enables or disables the power LED indicator to flash when the phone misses a call.
Permitted
Values
0-Disabled (power LED indicator does not flash)
1-Enabled (power LED indicator slowly flashes (1s) red)
For T19(P) E2 phones:
0-Disabled (power LED indicator does not flash)
1-Enabled (power LED indicator slowly flashes (1s) yellow)
Default
1
Supported
Devices
All phones except CP920
Web UI
Features > Power LED > MissCall Power Light Flash
Parameter
phone_setting.autop_led_flash_enable <y0000000000xx>.cfg

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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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