Yealink SIP-T53W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
435
Default
Blank
Supported
Devices
All phones except T19(P) E2 and CP920
Web UI
Account > Advanced > BLF List Retrieve Call Parked Code
Parameter
phone_setting.auto_blf_list_enable <y0000000000xx>.cfg
Description
It enables or disables the phone to automatically configure the BLF list DSS keys in order.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Supported
Devices
All phones except T19(P) E2 and CP920
Parameter
phone_setting.blf_list_sequence_type <y0000000000xx>.cfg
Description
It configures the order of BLF list DSS keys assigned automatically.
Note: It works only if “phone_setting.auto_blf_list_enable” is set to 1 (Enabled). To assign Ext Key,
make sure the expansion module has been connected to the phone in advance.
Permitted
Values
0-linekey > exp1 key > expN key
1-exp1 key > expN key > linekey
2-linekey page1 > page1 from exp1 key to expN key > page2 from exp1 key to expN key > … >
linekey from page2 to page3
3-page1 from exp1 key to expN key > page2 from exp1 key to expN key > … > linekey
Note: N is the number of your connected expansion modules.
Default
0
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T48G, T46U, T46S, T46G, T43U, T29G, T27G
Parameter
features.blf_list_version
[2]
<y0000000000xx>.cfg
Description
It enables or disables the phone to include the Version header in the BLF list NOTIFY message sent
by the server.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
All phones except T19(P) E2 and CP920
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42U/T42G/T42S, X=1-12; for T41P/T41S/T27G, X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21
(P) E2, X=1-2.
[2]
If you change this parameter, the phone will reboot to make the change take effect.
State Indicator of Remote Line
The state indicator of the monitored line on BLF/BLF List key varies by phone models.
The following table shows the LED/icons indicator associated with the line you are monitoring.

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