Yealink SIP-T40G User Manual

Maintaining Your Phone
231
Maintaining Your Phone
When your phone is unable to operate properly, you need to investigate or troubleshoot issues
among other tasks your administrator may ask you to perform. This chapter explains how to
perform maintenance tasks on your phone:
 Diagnosing the Network
 Rebooting Your Phone
 Resetting to Factory Settings
 Updating the Phone Configuration
 Export All Diagnostic Files
Diagnosing the Network
The wrong network settings may result in inaccessibility of your phone and poor network
performance. In this case, your system administrator may ask you to use the “Ping” or “Trace
Route” method to check whether the network is connected, and to analyze the network fault.
Checking the Network Using “Ping” Method
Procedure:
1. Navigate to Menu->Features->Diagnostics->Network->Ping.
2. Enter the desired IP address or URL in the Ping IP or URL field.
3. Press Start.
The screen displays the network status information.
4. Press Back to back to the preview screen.
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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