Yealink SIP-T53W Administrator's Guide

Call Features
376
Call Timeout Configuration
Call Timeout Configuration
The following table lists the parameter you can use to configure call timeout.
Parameter
phone_setting.ringback_timeout <y0000000000xx>.cfg
Description
It configures the duration time (in seconds) in the ringback state.
If it is set to 180, the phone will cancel the dialing if the call is not answered after 180 seconds.
Permitted
Values
Integer from 1 to 3600
Default
180
Anonymous Call
Anonymous call allows the caller to conceal the identity information shown to the callee. The callee’s phone LCD
screen prompts an incoming call from anonymity.
Anonymous calls can be performed locally or on the server. When performing anonymous call on local, the phone
sends an INVITE request with a call source " From: "Anonymous" sip:anonymous@anonymous.invalid ”. If per-
forming Anonymous call on a specific server, you may need to configure anonymous call on code and off code to
activate and deactivate server-side anonymous call feature.
Topic
Anonymous Call Configuration
Anonymous Call Configuration
The following table lists the parameters you can use to configure the anonymous call.
Parameter
account.X.anonymous_call
[1]
<MAC>.cfg
Description
It triggers the anonymous call feature to on or off.
Permitted
Values
0-Off
1-On, the phone will block its identity from showing to the callee when placing a call. The callee’s
phone screen presents “Anonymous” instead of the caller’s identity.
Default
0
Web UI
Account > Basic > Local Anonymous
Phone UI
Menu > Features > Anonymous Call > Local Anonymous
Parameter
account.X.send_anonymous_code
[1]
<MAC>.cfg
Description
It configures the phone to send anonymous on/off code to activate/deactivate the server-side anonym-
ous call feature for a specific account.
Permitted
Values
0-Off Code, the phone will send anonymous off code to the server when you deactivate the anonym-
ous call feature.
1-On Code, the phone will send anonymous on code to the server when you activate the anonymous
call feature.
Default
0
Web UI
Account > Basic > Send Anonymous Code

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