Yealink SIP-T52S Administrator's Guide

Configuring Audio Features
857
Codec
Configuration
Methods
Priority
RTPmap
Web User Interface
iLBC
Configuration Files
Web User Interface
0
106
opus
(only applicable to SIP-
T54S/T52S/T48S/T46S/T4
2S/T41S/T40P/T40G/
T27G/T23P/T23G/T21(P)
E2/T19(P) E2/CP920)
Configuration Files
Web User Interface
0
107
Audio Codec Configuration
Yealink IP phones running firmware version 81 or later support a new configuration behavior
for the audio codecs. It is more efficiently for you to provision a number of different IP phone
modules.
The configuration parameters are different for the new configuration behavior and the older
one.
Note
New Configuration Behavior
Procedure
Configuration changes can be performed using the following methods.
Central Provisioning
(Configuration File)
<MAC>.cfg
Configure the codecs to use on a per-line
basis.
Parameter:
account.X.codec.<payload_type>.enable
Configure the priority and rtpmap for the
enabled codec.
Parameters:
account.X.codec.<payload_type>.priority
account.X.codec.<payload_type>.rtpmap
Configure opus sample rate.
Parameter:
account.X.codec.opus.para
The old configuration behavior is only applicable to the IP phones running firmware version 81
or prior.

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