Yealink SIP-T52S Administrator's Guide

Configuring Advanced Features
695
Parameters
Permitted Values
Default
multicast address on the channel 26 to 30 respectively from Yealink IP phones.
Example:
multicast.listen_address.1.channel = 2
Web User Interface:
Directory->Multicast IP->Multicast Listening->Channel
Phone User Interface:
None
multicast.listen_address.X.volume
(X ranges from 1 to 31)
Integer from 0 to 15
0
Description:
Configures the volume of the speaker when receiving the multicast paging calls.
If it is set to 0, the current volume of the speaker takes effect. The volume of the speaker
can be adjusted by pressing the Volume key in advance when the phone is during a call.
You can also adjust the volume of the speaker during the paging call.
If it is set to 1 to 15, the configured volume takes effect and the current volume of the
speaker will be ignored. You are not allowed to adjust the volume of the speaker during
the paging call.
Example:
multicast.listen_address.1.volume = 1
Web User Interface:
None
Phone User Interface:
None
multicast.receive.use_speaker
0 or 1
0
Description:
Enables or disables the IP phone to always use the speaker as the audio device when
receiving the multicast paging calls.
0-Disabled
1-Enabled
If it is set to 0 (Disabled), the engaged audio device will be used when receiving the
multicast paging calls.
Web User Interface:
None
Phone User Interface:

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