Yealink SIP-T48U Administrator's Guide

Call Features
408
Description
It enables or disables to synchronize the feature status between the IP phone and the server.
Permitted
Values
0-Disabled
1-Enabled, the phone sends a SUBSCRIBE message with event “as-feature-event” to the server.
Default
0
Parameter
account.X.feature_key_sync.enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables to synchronize the feature status between the IP phone and the server for
account X.
Note: The value configured by this parameter takes precedence over that configured by the parameter
"features.feature_key_sync.enable".
Permitted
Values
0-Disabled
1-Enabled, the phone to send a SUBSCRIBE message with event “as-feature-event” to the server.
Default
Blank
Supported
Devices
All phones except T48G, T46G, T42G, T41P, T29G and CP920
Parameter
features.forward.feature_key_sync.enable <y0000000000xx>.cfg
Description
It enables or disables the forward feature synchronization.
Note: It works only if “features.feature_key_sync.enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled, server-based call forward is enabled. Server and local phone call forward are syn-
chronized.
Default
1
Parameter
account.X.forward.feature_key_sync.enable
[1]
<MAC>.cfg
Description
It enables or disables the forward feature synchronization for account X.
Note: The value configured by this parameter takes precedence over that configured by the parameter
"features.forward.feature_key_sync.enable". It works only if “account.X.feature_key_sync.enable” is
set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled, server-based call forward is enabled. Server and local phone call forward are syn-
chronized.
Default
Blank
Supported
Devices
All phones except T48G, T46G, T42G, T41P, T29G and CP920
Parameter
features.forward.feature_key_sync.local_processing.enable <y0000000000xx>.cfg
Description
It enables or disables the local forward when call forward feature synchronization is enabled.
Note: It works only if “features.feature_key_sync.enable” and “features.forward.feature_key_syn-
c.enable” are set to 1 (Enabled). The value configured by the parameter “accoun-
t.X.features.forward.feature_key_sync.local_processing.enable” takes precedence over that
configured by this parameter.
Permitted
Values
0-Disabled, call forward is performed on the server side only.
1-Enabled, call forward is performed on both server side and locally.

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