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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
189
Values 1-Enabled
Default
1
Web UI
Settings > Voice Monitoring > Report Options on Phone > Packets Lost
Parameter
phone_setting.vq_rtcpxr_display_symm_oneway_delay.en-
able
<y0000000000xx>.cfg
Description
It enables or disables the phone to display SymmOneWayDelay on the phone screen.
Note: It works only if “phone_setting.vq_rtcpxr.states_show_on_gui.enable is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled
Default
0
Web UI
Settings > Voice Monitoring > Report Options on Phone > SymmOneWayDelay
Parameter
phone_setting.vq_rtcpxr_display_round_trip_delay.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to display RoundTripDelay on the phone screen.
Note: It works only if “phone_setting.vq_rtcpxr.states_show_on_gui.enable is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled
Default
0
Web UI
Settings > Voice Monitoring > Report Options on Phone > RoundTripDelay
Parameter
phone_setting.vq_rtcpxr_display_moslq.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to display MOS-LQ on the phone screen.
Note: It works only if “phone_setting.vq_rtcpxr.states_show_on_gui.enable is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled
Default
1
Web UI
Settings > Voice Monitoring > Report Options on Phone > MOS-LQ
Parameter
phone_setting.vq_rtcpxr_display_moscq.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to display MOS-CQ on the phone screen.
Note: It works only if “phone_setting.vq_rtcpxr.states_show_on_gui.enable is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled
Default
1
Web UI
Settings > Voice Monitoring > Report Options on Phone > MOS-CQ
Central Report Collector
To operate with the central report collector, the phones must be configured to forward their voice quality reports to
the specified report collector. You can specify the report collector on a per-line basis.
Topic
Central Report Collector Configuration

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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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