Yealink SIP-T22P User Manual

Also see for Yealink SIP-T22P: Auto provisioning guide User guide User guide User guide User guide

Contents

Yealink SIP-T22P User Manual Manual pdf 131 page image

Troubleshooting119This chapter provides general troubleshooting information to help to solve the problemsyou might encounter when using your SIP-T22P IP phone.If you require additional information or assistance with your new phone, contact yoursystem administrator.Why is the LCD screen blank? Ensure that the phone is properly plugged into a functional AC outlet. Ensure that the phone is plugged into a socket controlled by a switch that is on. If the phone is plugged into a power strip, try plugging it directly into a wall outletinstead. If the phone is powered from PoE, ensure you use a PoE-compliant switch or hub.Why does the phone display “Network Unavailable”? Ensure that the Ethernet cable is plugged into the Internet port o the phone and theEthernet cable is not loose. Ensure that the switch or hub in your network is operational. Contact your system administrator for more information.Why does the phone display “No Service”?The LCD screen prompts “No Service” message when no SIP account registerssuccessfully.Why doesn’t the phone display time and date correctly?Check if you have configured the phone to obtain the time and date from the SNTPserver automatically. If the phone fails to connect the SNTP server, you need to configurethe time and date manually.How do I find the basic information of the phone?Press the OK key when the phone is idle to check the basic information of the phone,such as the IP address and firmware version. For more the basic information, refer toPhone Status on page 13.