Yealink T40G Configuring Guide

Troubleshooting
69
Troubleshooting
This section describes solutions to common issues that may occur while using the IP phone.
Upon encountering a scenario not listed in this section, contact your Yealink reseller for further
support.
IP Address Issues
Why doesn’t the IP phone get an IP address?
Do one of the following:
If your phone connects to the wired network:
 Ensure that the Ethernet cable is plugged into the Internet port on the IP phone and the
Ethernet cable is not loose.
 Ensure that the Ethernet cable is not damaged.
 Ensure that the IP address and related network parameters are set correctly.
 Ensure that your network switch or hub is operational.
 Ensure that the Wi-Fi feature is disabled.
If your phone connects to the wireless network:
 If the network is secure, ensure the entered password is right.
 Ensure your gateway/router enables the wireless network feature.
How to solve the IP conflict problem?
Do one of the following:
 Reset another available IP address for the IP phone.
 Check network configuration via phone user interface at the path
Menu->Settings->Advanced Settings(default password: admin) ->Network->WAN
Port->IPv4 (or IPv6). If the Static IP is selected, select DHCP instead.
Time and Date Issues
Why doesn’t the IP phone display time and date correctly?
Check if the IP phone is configured to obtain the time and date from the NTP server

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