Why doesn't my Yealink Telephone get an IP address?
If your Yealink Telephone isn't getting an IP address, check the following: * Ensure the Ethernet cable is securely plugged into the internet port and is not loose. * Verify the Ethernet cable is not damaged. * Confirm that the IP address and related network parameters are set correctly. * Make sure your network switch or hub is working. * Ensure the Wi-Fi feature is disabled.
Why does my Yealink Telephone display “No Service”?
If your Yealink Telephone displays “No Service”, ensure that an account is actively registered on the IP phone at Menu->Status->More->Accounts.
Why does my Yealink Telephone have no power?
If your Yealink Telephone has no power: * Reboot your IP phone. * Replace the power adapter.
What to do if the LCD screen is blank on my Yealink Telephone?
If the LCD screen on your Yealink Telephone is blank, verify the following: * Ensure the phone is properly plugged into a functional AC outlet. * Confirm the phone is plugged into a socket controlled by a switch that is on. * If plugged into a power strip, try plugging it directly into a wall outlet. * If your phone is PoE powered, ensure you are using a PoE-compliant switch or hub.
How to solve IP conflict problem on Yealink Telephone?
To resolve an IP conflict on your Yealink Telephone, you can: * Reset another available IP address for the IP phone. * Check network configuration via the phone's user interface at Menu->Settings->Advanced Settings (default password: admin)->Network->WAN Port->IPv4 (or IPv6). If Static IP is selected, choose DHCP instead.
Why doesn’t my Yealink Telephone upgrade firmware successfully?
If your Yealink Telephone isn’t upgrading firmware successfully, check the following: * Ensure that the target firmware is not the same as the current firmware. * Ensure that the target firmware is applicable to the IP phone model. * Ensure that the current or the target firmware is not protected. * Ensure that the power is on and the network is available during the upgrade. * Ensure that the web browser is not closed or refreshed when upgrading firmware via the web user interface.
Why do I get poor sound quality during a call on my Yealink Telephone?
Poor sound quality during a call on your Yealink Telephone can be due to several factors: * Users being too far from the microphone or too close to sensitive microphones. * Packet loss and jitter due to network congestion. * Noisy equipment causing interference. Turn off any noisy equipment. * Line issues. Try disconnecting the old line and redialing to see if another line provides a better connection.
Why doesn’t my Yealink Telephone display time and date correctly?
If your Yealink Telephone doesn’t display the correct time and date: * Check if the IP phone is configured to obtain the time and date from the NTP server automatically. * If your phone is unable to access the NTP server, configure the time and date manually.
Why doesn’t my Yealink Telephone update the configuration?
If your Yealink Telephone isn’t updating its configuration: * Ensure that the configuration is set correctly. * Reboot the phone, as some configurations require a reboot to take effect. * Ensure that the configuration is applicable to the IP phone model. * Be aware that the configuration may depend on support from a server.
Why does the Bluetooth headset affect Yealink Telephone’s voice quality?
Your Yealink Telephone's voice quality may be affected if you use a Bluetooth headset while the 2.4 GHz band is enabled or in an environment with many other Bluetooth devices.
General| VoIP Protocols | SIP |
|---|---|
| PoE Support | Yes (IEEE 802.3af) |
| Headset Port | RJ9 |
| Bluetooth | No |
| Weight | 1.04 kg |
| Display | 4.3" color display with backlight, 480 x 272 pixels |
| Line Keys | 10 line keys |
| Ethernet Ports | 2 x 10/100/1000 Mbps |
| Audio Codecs | G.722, G.711, G.729, G.726, iLBC |
| USB Port | 1 x USB 2.0 |
| Expansion Module Support | Yes, supports up to 6 EXP20 expansion modules |
| EHS | Yes |
| Supported Protocols | SIP |
| Operating Temperature | -10~50°C |
| Humidity | 10% to 95% (non-condensing) |
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