Yealink T40G Administrator's Guide

Troubleshooting
582
Item
Description
 52: T21(P) E2
 53: T19(P) E2
2
82
Firmware generation.
Note: The larger it is, the newer the firmware
generation is.
3
0
A fixed number.
4
20
Firmware version.
Note: With the same firmware generation, the
larger it is, the newer the firmware version is.
The IP phone does not update the configurations
Do one of the following:
 Ensure that the configuration is set correctly.
 Reboot the phone. Some configurations require a reboot to take effect.
 Ensure that the configuration is applicable to the IP phone model.
 The configuration may depend on support from a server.
System Log Issues
Fail to export the system log to a provisioning server (FTP/TFTP server)
Do one of the following:
 Ensure that the FTP/TFTP server is downloaded and installed on your local system.
 Ensure that you have configured the FTP/TFTP server address correctly via web user interface on
your IP phone.
 Reboot the phone. The configurations require a reboot to take effect.
Fail to export the system log to a syslog server
Do one of the following:
 Ensure that the syslog server can save the syslog files exported from IP phone.
 Ensure that you have configured the syslog server address correctly via web user interface on your
IP phone.
 Reboot the phone. The configurations require a reboot to take effect.

Yealink T40G Specifications

General

SIP Accounts	3
Wall Mountable	Yes
Opus Codec	No
Display	2.3 inch 132x64-pixel graphical LCD
Network	Dual-port Gigabit Ethernet
PoE	Yes
Headset Support	Yes, RJ9 port
Power Adapter	Optional
Voice Codecs	G.722, G.711(A/μ), G.729AB, G.726
Local Phonebook	1000 entries