Yealink SIP-T52S Administrator's Guide

Configuring Basic Features
541
Details of Configuration Parameter:
Parameter
Permitted Values
Default
features.allow_mute
0 or 1
1
Description:
Enables or disables the allow mute feature for the IP phone.
0-Disabled
1-Enabled
If it is set to 1 (Enabled), you are allowed to mute an active call, or activate the mute feature
on the pre-dialing/dialing/calling/ringing screen (Mute the microphone on the calling
screen is only applicable to the SIP-T54S/T52S/T48G/T48S/T46G/T46S/T29G IP phones).
Note: For SIP-T23P/T23G/T21(P) E2 IP phones, you are allowed to activate the mute feature
on the pre-dialing/dialing/calling/ringing screen only if the value of the parameter
“features.keep_mute.enable” is set to 1 (Enabled).
Web User Interface:
Features->General Information->Allow Mute
Phone User Interface:
None
To configure allow mute via web user interface:
1. Click on Features->General Information.
2. Select the desired value from the pull-down list of Allow Mute.
3. Click Confirm to accept the change.

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