Yealink SIP-T48U Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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LED Status
Description
Fast-flashing red (200ms) The monitored user receives an incoming call.
Solid red
The monitored user is dialing.
The monitored user is talking.
Off The monitored user does not exist.
State Monitor for Intercom Contact Configuration
The following table lists the parameters you can use to configure state monitor for intercom contact.
Parameter
features.intercom.led.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to display different intercom DSS key LED status/icons when the
status of monitored user changes.
Note: It works only if “features.intercom.subscribe.enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled
Supported
Devices
All phones except T19(P) E2 and CP920
Default
0
Parameter
features.intercom.subscribe.enable <y0000000000xx>.cfg
Description
It enables or disables intercom subscription for the phones.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
All phones except T19(P) E2 and CP920
Outgoing Intercom Configuration
Yealink phones support two methods for initialing intercom calls.
The following table lists the parameters you can use to configure outgoing intercom.
Parameter
features.intercom.mode <y0000000000xx>.cfg
Description
It configures the intercom mode.
Permitted
Values
0-SIP
1-FAC, the feature access code is configured by “features.intercom.feature_access_code”.
Default
0
Parameter
features.intercom.feature_access_code <y0000000000xx>.cfg
Description
It configures the intercom feature access code.
Note: It works only if “features.intercom.mode” is set to 1 (FAC).
Permitted
Values
String
Default
Blank
Parameter
account.X.call_info
[1]
<MAC>.cfg

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