Yealink SIP-T52S Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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Parameters
Permitted Values
Default
Description:
Enables or disables the IP phone to display the DTMF digits for a short period before
displaying asterisks during an active call.
0-Disabled
1-Enabled
Note: It works only if the value of the parameter “features.dtmf.hide” is set to 1 (Enabled).
Web User Interface:
Features->General Information->Suppress DTMF Display Delay
Phone User Interface:
None
To configure suppress DTMF display and suppress DTMF display delay via web user
interface:
1. Click on Features->General Information.
2. Select the desired value from the pull-down list of Suppress DTMF Display.
3. Select the desired value from the pull-down list of Suppress DTMF Display Delay.
4. Click Confirm to accept the change.
Transfer via DTMF
Call transfer is implemented via DTMF on some traditional servers. The IP phone sends
specified DTMF digits to the server for transferring calls to third parties.

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