D-Link DPH-140S Product Manual - Page 39

10.0 Troubleshooting The following troubleshooting information can be used to help solve most common problems. QUESTION There are no DIAL tone RECOMMENDED ACTION 1. Check if there are any loose connections. Nothing is displayed on the 1. Check if power cord is connected properly. LCD screen 2. Check if there is 120V AC coming from the power outlet. How to update Firmware? 1. ATC IP Phone automatically updates firmware when it powers up (while connected to the internet). Why can't I dial my friend's 1. Check Registrar Server Domain Name/IP address and SIP number? Outbound Proxy Domain Name/IP Address (under SIP Settings in Configuration Menu). Make sure you have the right Name or IP Address. 2. Check the LCD display on your phone to see if there is a name or number displayed on the screen. If the name or number is not displayed, use a web browser and access the configuration menu. Make sure that the Registrar Server Domain Name/IP Address is correct. 3. Check the register status under SIP Account Settings in the configuration menu (from web browser). If your status is unregistered, it means you do not have a SIP account. Contact your SIP service provider to get an account. Why isn't my firmware 1. Your IP phone automatically detects for new firmware updating? when you unplug the power. If new version is available the phone will automatically update the firmware. 2. Check if FTP address is correct. 36