Yealink SIP-T52S Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
380
The new incoming call is presented to the user visually on the LCD screen.
Call waiting tone allows the IP phone to play a short tone, to remind the user audibly of a new
incoming call during conversation. Call waiting tone works only if call waiting is enabled. You
can customize call waiting tone or select specialized tone sets (vary from country to country)
for your IP phone. For more information, refer to Tones on page 834.
The call waiting on code and call waiting off code configured on IP phones are used to
activate/deactivate the server-side call waiting feature. They may vary on different servers.
Procedure
Call waiting and call waiting tone can be configured using the following methods.
Central Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure call waiting and call
waiting tone.
Parameters:
call_waiting.enable
call_waiting.tone
call_waiting.on_code
call_waiting.off_code
Web User Interface
Configure call waiting.
Navigate to:
http://<phoneIPAddress>/servlet?p
=features-general&q=load
Configure call waiting tone.
Navigate to:
http://<phoneIPAddress>/servlet?p
=features-audio&q=load
Phone User Interface
Configure call waiting and call
waiting tone.
Details of Configuration Parameters:
Parameters
Permitted Values
Default
call_waiting.enable
0 or 1
1
Description:
Enables or disables call waiting feature.
0-Disabled
1-Enabled
If it is set to 0 (Disabled), a new incoming call is automatically rejected by the IP phone with

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