Yealink SIP-T2, T3, T4, T5, CP920 Administrator's Guide
![Yealink SIP-T2, T3, T4, T5, CP920 manual cover](/images/3ecd3c53ae1ae828dbc5feed/thumbs/thumb175x175.webp)
To set up your Yealink SIP-T4, connect the handset using the provided cord, attach the Ethernet cable from your network to the LAN port, and plug in the power adapter. Configure the network settings via the menu, and register your SIP account in the phone's web interface.
First, check your network connection and ensure the Ethernet cable is securely connected. Verify the SIP server details, username, and password in the phone's web interface. If the problem persists, restart the phone and check for firmware updates.
To reset the Yealink CP920, press and hold the 'OK' button for about 10 seconds until you see the reset prompt, then select 'OK' to confirm. This will restore the device to its factory settings.
Download the latest firmware from the Yealink support site. Access the phone's web interface, go to the 'Upgrade' section, and upload the new firmware file. Follow the on-screen instructions to complete the update.
Press the desired line key, select 'Speed Dial', enter the contact number, and save. You can also configure speed dials via the phone's web interface under the 'DSSKey' settings.
Check if the handset, headset, or speaker is properly connected. Ensure the volume is not muted. Verify network settings and codecs in the phone's configuration. Restart the phone and check for any available firmware updates.
During a call, press the 'Transfer' button, enter the target number, then press 'Transfer' again to complete the process. You can also use the 'Transfer' soft key for this function.
Access the phone's menu, go to 'Features', select 'Call Forward', and choose the desired forwarding type (Always, Busy, No Answer). Enter the target number and activate the feature.
Ensure the phone is in a suitable location away from reflective surfaces. Adjust the volume settings and check for firmware updates. If the problem persists, contact Yealink support for further assistance.
Yes, you can use a wireless headset with your Yealink SIP-T4. Ensure the headset is compatible with the phone and follow the manufacturer's pairing instructions. You may need an EHS (Electronic Hook Switch) adapter for full functionality.