Yealink SIP-T40G Enterprise Quick Start Guide
![Yealink SIP-T40G Enterprise manual cover](/images/1ce3c354dad13a610cccd409/thumbs/thumb175x175.webp)
To set up your Yealink SIP-T40G, connect the handset and power cable, then connect the network cable. Once powered on, go to Menu > Advanced Settings > Accounts to configure your SIP account details.
Check the handset connection and ensure the phone is registered with the SIP server. Restart the phone and verify network connections. If the issue persists, contact your network administrator.
Download the latest firmware from the Yealink website. Access the phone's web interface via its IP address, navigate to Settings > Upgrade, and upload the firmware file.
Press the OK button for 10 seconds until the Reset to Factory screen appears. Confirm the reset by selecting OK. This will erase all custom settings.
Go to Menu > Features > Call Forward. Select the desired forwarding type (Always, Busy, No Answer) and enter the target number. Save your settings.
Check network connectivity and ensure the phone has sufficient bandwidth. Verify that the latest firmware is installed. Adjust QoS settings if necessary.
Find the phone's IP address by navigating to Menu > Status. Enter the IP address in a web browser to access the web interface. Default login credentials are admin/admin.
Yes, you can connect a headset via the RJ9 headset port. Ensure that the headset is compatible with the phone model.
Go to Menu > Features > DSS Keys. Select a line key, set the type to Speed Dial, and input the desired number. Save your configuration.
Verify the SIP account details and server address. Ensure the network connection is active and firewall settings allow SIP traffic. Restart the phone and recheck registration settings.