Yealink SIP-T53W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Supported: timer
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Topic
Session Timer Configuration
Session Timer Configuration
The following table lists the parameters you can use to configure the session timer.
Parameter
account.X.session_timer.enable
[1]
<MAC>.cfg
Description
It enables or disables the session timer.
Permitted
Values
0-Disabled
1-Enabled, the phone will send periodic UPDATE requests to refresh the session during a call.
Default
0
Web UI
Account > Advanced > Session Timer
Parameter
account.X.session_timer.expires
[1]
<MAC>.cfg
Description
It configures the interval (in seconds) for refreshing the SIP session during a call.
An UPDATE will be sent after 50% of its value has elapsed. For example, if it is set to 1800 (1800s),
the phone will refresh the session during a call every 900 seconds.
Note: It works only if “account.X.session_timer.enable” is set to 1 (Enabled).
Permitted
Values
Integer from 90 to 7200
Default
1800
Web UI
Account > Advanced > Session Expires (90~7200s)
Parameter
account.X.session_timer.refresher
[1]
<MAC>.cfg
Description
It configures who refreshes the SIP session during a call.
Note: It works only if “account.X.session_timer.enable” is set to 1 (Enabled).
Permitted
Values
0-UAC
1-UAS
Default
0
Web UI
Account > Advanced > Session Refresher
[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.
Reboot in Talking
Reboot in talking feature allows the phones to reboot during an active call when it receives a reboot Notify mes-
sage.
Topic
Reboot in Talking 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