Yealink SIP-T48U Administrator's Guide

Call Features
398
Default
1
Parameter
features.fwd_mode <y0000000000xx>.cfg
Description
It configures the call forward mode.
Note: It works only if “features.fwd.allow” is set to 1 (Enabled).
Permitted
Values
0-Phone, call forward feature is effective on a phone basis.
1-Custom, you can configure call forward feature on a per-line basis.
Default
0
Supported
Devices
All phones except T19(P) E2 and CP920
Web UI
Features > Forward&DND > Forward > Mode
Parameter
features.forward.emergency.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to receive the call from authorized numbers when the call forward fea-
ture is activated.
Note: It works only if “features.fwd.allow” is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled, the call from authorized numbers will not be forwarded when the call forward feature is
activated.
Default
0
Web UI
Features > Forward&DND > Forward > Forward Emergency
Parameter
features.forward.emergency.authorized_number <y0000000000xx>.cfg
Description
It configures the authorized numbers.
The call from the authorized numbers cannot be forwarded even if the call forward feature is activated.
Multiple numbers are separated by commas.
Note: It works only if “features.fwd.allow” and “features.forward.emergency.enable” are set to 1
(Enabled).
Permitted
Values
String within 511 characters
Default
Blank
Web UI
Features > Forward&DND > Forward > Forward Authorized Numbers
Parameter
forward.international.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to forward incoming calls to international numbers (the prefix is 00).
Note: It works only if “features.fwd.allow” is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled
Default
1
Web UI
Features > General Information > Fwd International
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > FWD International > FWD International
Black-and-white Screen Phones:

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