Yealink SIP-T52S Administrator's Guide

Configuring Advanced Features
801
Parameters
Permitted Values
Default
mask password fields.
Example:
edk.edkprompt.1.userfeedback = masked
Note: It works only if the values of the parameters “features.enhanced_dss_keys.enable” and
“edk.edkprompt.X.enable” are set to 1 (Enabled).
Web User Interface:
None
Phone User Interface:
None
Configuring EDK Soft Keys
The soft keys can be used by the system administrator to customize the use of the soft keys on
the phone to suit users’ needs. You can assign functions to soft keys using macros. This feature
is typically used to access frequently used functions or to create menu shortcuts to frequently
used phone settings.
You can configure the soft keys to display functions depending on the phone’s menu level or
call state. For example, you can make a DPickup soft key available when the phone is in an
active call state.
Custom soft keys can be added in the following call states:
 Idle - There are no active calls on the phone.
 Alerting (or ringing) – There is an incoming call on the phone.
 Connecting – There is an outgoing call on the phone. And the call is connecting.
 Transfer connecting – There is a call being transferred to another phone. And the call is
connecting.
 Talk – There is an active call on the phone.
 Call failed – The outgoing call encounters a failure.
 Ring back - There is an outgoing call on the phone. And the phone is in the ringback
state.
 Transfer ring back - There is a call being transferred to another phone. And the phone is
in the ringback state.
 Hold – The call is placed on hold on the phone.
 Held – The call is held.
 Conference – The phone sets up a conference call.
 Dial tone – There is a dial tone you can hear on the phone.
 Dialing – The phone is on the dialing screen.

Yealink SIP-T52S Specifications

General

Touchscreen	-
Display diagonal	2.8 \
Backlight display	Yes
Display resolution	320 x 240 pixels
Lines quantity	16 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
AC adapter input voltage	100 - 240 V
Bluetooth version	2.1+EDR
Security algorithms	802.1x RADIUS, HTTPS, MD5
Ethernet LAN interface type	Gigabit Ethernet
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Voice codecs	G.722, G.723, G.723.1, G.726, OPUS, iLBC
Volume control	Digital
Operating temperature (T-T)	-10 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Front camera	No
Operating system installed	Linux

Weight and Dimensions

Depth	212 mm
Width	211.6 mm
Height	166.8 mm