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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
433
Visual and Audio Alert for Monitor Lines
LED Mode for BLF/BLF List Key
BLF/BLF List Key LED Status and Behavior Configuration
BLF Key for Intercom Configuration
Call Information Display Configuration
BLF Key Configuration
You can configure a BLF key for a specific line.
The following shows the configuration of a BLF key for Bill.
linekey.X.type=16
linekey.X.line=1
linekey.X.value=1001
linekey.X.label=Bill
Related Topic
Line Keys Configuration
BLF List Configuration
You can configure a BLF List for monitor phone. It enables the monitor phone to subscribe to a list of lines, and
receive status notifications of the monitored lines.
Note: The IP phone subscribes to a BLF list that is set up on the server. You must access the server and set up a list of mon-
itored lines.
The following table lists the parameters you can use to configure BLF List.
Parameter
account.X.blf.blf_list_uri
[1]
<MAC>.cfg
Description
It configures the BLF List URI to monitor a list of users for account X.
Example:
account.1.blf.blf_list_uri = 4609@pbx.test.com
Permitted
Values
SIP URI within 256 characters
Default
Blank
Supported
Devices
All phones except T19(P) E2 and CP920
Web UI
Account > Advanced > BLF List URI
Parameter
account.X.blf_list_code
[1]
<MAC>.cfg
Description
It configures the feature access code that initiates a directed call pickup for account X.
Permitted
Values
String within 32 characters
Default
Blank
Supported
Devices
All phones except T19(P) E2 and CP920
Web UI
Account > Advanced > BLF List Pickup Code
Parameter
account.X.blf_list_barge_in_code
[1]
<MAC>.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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