Yealink SIP-T53W Administrator's Guide

Call Features
372
T19(P) E2/CP920 phones; handset and Speakerphone key are not applicable to CP920 phones; the
off-hook key is only applicable to CP920 phones.
Permitted
Values
String within 1024 characters
Default
Blank
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42G/T42U/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; for T19(P) E2/CP920, X=1.
Live Dialpad
Live Dialpad allows the phones to automatically dial out the entered phone number without pressing the send key
after a designated period of time.
Topic
Live Dialpad Configuration
Live Dialpad Configuration
The following table lists the parameters you can use to configure live dialpad.
Parameter
phone_setting.predial_autodial <y0000000000xx>.cfg
Description
It enables or disables the live dialpad feature.
Permitted
Values
0-Disabled
1-Enabled, the phone will automatically dial out the entered phone number on the pre-dialing screen
without pressing a send key.
Default
0
Web UI
Settings > Preference > Live Dialpad
Parameter
phone_setting.inter_digit_time <y0000000000xx>.cfg
Description
It configures the delay time (in seconds) for the phone to automatically dial out the entered phone
number without pressing a send key.
Note: It works only if “phone_setting.predial_autodial” is set to 1 (Enabled).
Permitted
Values
Integer from 1 to 14
Default
4
Web UI
Settings > Preference > Inter Digit Time (1~14s)
Auto Redial
You can set the phone automatically redial the last dialed number when the callee is temporarily unavailable. Both
the number of attempts and waiting time between redials are configurable.
Topic
Auto Redial Configuration
Auto Redial Configuration
The following table lists the parameters you can use to configure auto redial.

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