Yealink SIP-T53W Administrator's Guide

Troubleshooting Methods
552
NOTIFY sip:<user>@<dsthost> SIP/2.0
To: sip:<user>@<dsthost>
From: sip:sipsak@<srchost>
CSeq: 10 NOTIFY
Call-ID: 1234@<srchost>
Event: check-sync;reboot=true
Topic
Notify Reboot Configuration
Notify Reboot Configuration
The following table lists the parameter you can use to configure notify reboot.
Parameter
sip.notify_reboot_enable <y0000000000xx>.cfg
Description
It configures the IP phone behavior when receiving a SIP NOTIFY message which contains the
header “Event: check-sync”.
Permitted
Values
0-The phone will reboot only if the SIP NOTIFY message contains an additional string “reboot=true”.
1-The phone will reboot.
2-The phone will ignore the SIP NOTIFY message.
Default
1
Rebooting the Device via the Phone User Interface
You can reboot your device via the phone user interface.
Procedure
1. Press Menu > Basic > Reboot (Menu > Settings > Basic Settings > Reboot).
2. Press OK.
The device begins rebooting. Any reboot of the device may take a few minutes.
Rebooting the Device via Web User Interface
You can reboot your IP phone via the web user interface.
Procedure
1. Click Settings > Upgrade.
2. Click Reboot.
The device begins rebooting. Any reboot of the device may take a few minutes.

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