Yealink SIP-T53W Administrator's Guide

Phone Customization
253
Devices
Parameter
features.headset_mode.enable <y0000000000xx>.cfg
Description
It enables or disables the phone’s headset mode.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Supported
Devices
All phones except CP920
Parameter
features.headset.group_listen_in_talking_enable <y0000000000xx>.cfg
Description
It enables or disables the phone to enter into the group listening mode by pressing the Speakerphone
key when you first answer the call using the headset.
Note: The audio is sent only through the headset. So you are able to speak and listen through the
headset, but you can only listen through the speaker. It is not applicable to Bluetooth headset.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
T57W, T54W, T53W, T53, T48U, T46U, T43U, T42U, T48S, T46S, T42S, T41S and T27G
Parameter
phone_setting.headsetkey_mode <y0000000000xx>.cfg
Description
It configures headset mode during a call.
Permitted
Values
0-Always use (pressing the Speakerphone key and picking up the handset are not effective when the
headset mode is activated)
1-Use as normal
Default
1
Supported
Devices
All phones except CP920
DSS Keys
There are three kinds of DSS keys: Line Keys, Programmable Keys, and Ext Keys. You can assign various functions
to DSS keys. This section explains how to set these keys.
Line key is not applicable to T19(P) E2/CP920 phones, ext key is only applicable to expansion modules connected
to T57W/T54W/T53W/T53/T48U/T48S/T48G/T46U/T46S/T46G/T43U/T29G/T27G phones.
Note: If the phone is downgraded to an earlier firmware from firmware version 83, the DSS key configuration will be reset
after downgrading.
Topics
Supported DSS Keys
Supported Dsskey Types
Line Keys
Programmable Keys
Ext Keys
Dsskey Lock Configuration
Dsskey Page Reset Configuration

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