Yealink SIP-T53W Administrator's Guide

Audio Features
176
Default
1
Web UI
Settings > Voice > Echo Cancellation > CNG
Jitter Buffer
Yealink phones support two types of jitter buffers: fixed and adaptive. A fixed jitter buffer adds the fixed delay to
voice packets. You can configure the delay time for the static jitter buffer on the phones. An adaptive jitter buffer is
capable of adapting the changes in the network's delay. The range of the delay time for the dynamic jitter buffer
added to packets can be also configured on the phones.
Topic
Jitter Buffer Configuration
Jitter Buffer Configuration
You can configure the mode of jitter buffer and the delay time for jitter buffer in the wired network or wireless net-
work.
The following table lists the parameters you can use to configure the jitter buffer.
Parameter
voice.jib.adaptive <y0000000000xx>.cfg
Description
It configures the type of jitter buffer in the wired network.
Permitted
Values
0-Fixed
1-Adaptive
Default
1
Web UI
Settings > Voice > Jitter Buffer > Type
Parameter
voice.jib.min <y0000000000xx>.cfg
Description
It configures the minimum delay time (in milliseconds) of the jitter buffer in the wired network.
Note: It works only if “voice.jib.adaptive” is set to 1 (Adaptive). The value of this parameter should be
less than or equal to that of “voice.jib.normal”.
Permitted
Values
Integer from 0 to 400
Default
60
Web UI
Settings > Voice > Jitter Buffer > Min Delay
Parameter
voice.jib.max <y0000000000xx>.cfg
Description
It configures the maximum delay time (in milliseconds) of the jitter buffer in the wired network.
Note: It works only if “voice.jib.adaptive” is set to 1 (Adaptive). The value of this parameter should be
greater than or equal to that of “voice.jib.normal”.
Permitted
Values
Integer from 0 to 400
Default
240
Web UI
Settings > Voice > Jitter Buffer > Max Delay
Parameter
voice.jib.normal <y0000000000xx>.cfg
Description
It configures the normal delay time (in milliseconds) of the jitter buffer in the wired network.
Note: It works only if “voice.jib.adaptive” is set to 0 (Fixed). The value of this parameter should be
greater than or equal to that of “voice.jib.min” and less than or equal to that of “voice.jib.max”.

Yealink SIP-T53W Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP mobile phone
Product color	Gray
Keypad illumination	Yes
Wi-Fi standards	802.11a, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	4.2
Security algorithms	AES, HTTPS, SIPS
Networking standards	IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP/TFTP/HTTP/HTTPS
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Lines quantity	8 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Power consumption (typical)	2.3 W
Volume control	Buttons
Number of programmable keys	8
Storage temperature (T-T)	-30 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	3.7 \
Display resolution	360 x 160 pixels
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Number of DECT wireless handsets	4
Voice codecs	G.722, G.723.1, G.726, G.729A, G.729B, OPUS, iLBC

Weight and Dimensions

Depth	210.6 mm
Width	212 mm
Height	174.5 mm