Yealink SIP-T40G 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-T40G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Wall mountable	Yes
Wi-Fi	No
Security algorithms	AES, HTTPS, SSL/TLS
Networking standards	IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP, TFTP, HTTP, HTTPS
Voice codecs	G.711, G.711a, G.711u, G.722, G.726, G.729ab
RJ-11 ports quantity	1
Ethernet LAN (RJ-45) ports	2
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	1.6 W
Certification	CE, FCC, ISO 9001
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 90 %
Volume control	Digital
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Lines quantity	3 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	3
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	175 mm
Width	212 mm
Height	54 mm