Yealink SIP-T48U Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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“features.intercom.mode”).
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
All phones except T19(P) E2 and CP920
Call Information Display Configuration
The following table lists the parameter you can use to configure call information display.
Parameter
features.blf.show_callinfo.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to display the call information by long pressing the BLF/BLF List key.
Permitted
Values
0-Disabled
1-Enabled, when the monitored line is ringing, during a call, or has a parked call, users can long
press the BLF/BLF List key to view the call information, and then select to pick up the incoming call,
barge in a conference, or retrieve the parked call.
Default
0
Supported
Devices
All phones except T48G, T46G, T42G, T41P, T29G, T19(P) E2 and CP920
Shared Line
Yealink phones support Shared Call Appearance (SCA) and Bridged Line Appearance (BLA) to share a line.
Shared call appearances and bridged line appearances are similar signaling methods that enable more than one
phone to share the same line or registration. The methods you use vary with the SIP server you are using.
The shared line users have the ability to do the following:
l Place and answer calls
l Place a call on hold
l Retrieve a held call remotely
l Barge in an active call (only SCA)
l Pull a shared call (only SCA)
Topics
State Indicator of Shared Line
Shared Call Appearance (SCA) Configuration
Bridge Lines Appearance (BLA)
State Indicator of Shared Line
The shared line is indicated by different line key icon. Line key icon is not available on the T19(P) E2 phones.
The following table shows the LED/icons indicator associated with the shared line:

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