Yealink SIP-T48U Administrator's Guide

Phone Customization
259
Parameter
features.block_linekey_in_menu.enable <y0000000000xx>.cfg
Descrip-
tion
It enables or disables the phone to prevent the user from using line keys when browsing the menu.
Permitted
Values
0-Disabled
1-Enabled, it prevents the user from using line keys.
Default
0
Supported
Devices
All phones except T57W, T48U, T48S, T48G, T19(P) E2 and CP920
[1]
X is the line key ID. For T57W/T48U/T48S/T48G, X=1-29; for T54W/T46U/T46S/T46G/T29G, X=1-27; for
T53W/T53/T43U/T27G, X=1-21; for T42U/T42G/T42S/T41P/T41S, X=1-15; for T40P/T40G/T23P/T23G, X=1-3; for
T21(P) E2, X=1-2.
Example: Set a Park/Retrieve Key for FAC Call Park Mode
Scenario Conditions Related Topic
features.call_park.park_code = *68
Call Park and Retrieve
features.call_park.park_retrieve_code = *88
features.call_park.park_mode = 1
Example
######Set a Park key######
linekey.1.type = 10
linekey.1.value =4603
linekey.1.label =Bill
######Set a Retrieve key####
linekey.3.type = 56
linekey.3.line =1
linekey.3.value =4603
linekey.3.label =Retrieve Bill
After provisioning, you can easily press the Park key (line key 1) to park a call to a specific extension (4603) during
a call, and press the Retrieve key (line key 3) to retrieve the parked call from the specific extension (4603) when the
phone is idle.
If the “linekey.1.value” is set to blank, the park key will perform as the Park soft key.
Note: In FAC call park mode, the Park/Retrieve key invokes the call park code/park retrieve code by default. Therefore, the
phone dials out *684603 to park a call, and dials out *884603 to retrieve a call. If these codes are not set, you can assign code
and extension to “linekey.X.value”, for example, “*684603”.
Example: Set a Park/Retrieve Key for Transfer Call Park Mode
Scenario Conditions Related Topic
features.call_park.park_mode = 2
Call Park and Retrieve
features.call_park.line_restriction.enable = 1
Example

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