Configuring D-Link DPH-140S with 3CX Phone System

Note: We have tested this phone with 3CX Phone System and at the time of testing it worked. However, we do not retest each of our releases with the phone, nor do we retest new phone firmware. We recommend that if you are purchasing new phones, you stick to phones marked as “(Recommended)”

  1. Ensure that you have created the extension that you wish to use with the phone in 3CX Phone System first. Take note of the ID field and the password that you have entered for the extension.
  2. Connect the D-Link DPH-140S phone to the network and mains power supply. The phone will boot up, and providing you have DHCP installed on your network, will obtain an IP. The assigned IP can be retrieved from within the Phone’s menu, to do so press the phone’s ‘MENU’ button (top right), and navigate down through the menu using the ‘down’ arrow button (top center). The ‘down’ arrow button has to be pressed 3 times as the ‘IP Address’ is the 4th Menu item. Once the IP is noted you can then press the ‘MENU’ button once again to exit the phone’s menu.
  3. Now point your browser to the web interface of the phone: ‘http://:9999’ where is the IP address shown on the phone. Note the “:9999” suffix which is the URL’s port portion, indicating that the site is on port 9999.
  4. To log on the Website simply Click the ‘OK’ button when asked for a username and password. The D-Link DPH-140S is not set with a default username and password; you can proceed with authentication using a blank username and password.
  5. Select ‘Sip Settings’ from the left menu bar.
  6. Configure the ‘Registrar Server Domain Name/IP Address’ by inputting the IP or server name of the 3CX Phone System server.
  7. Repeat the same setting for the Outbound Proxy option.
  8. Under the ‘Others’ section; confirm that ‘Register with Proxy’ is set to ‘Enable’.
  9. Click on the submit button to commit the changes.
  10. Select ‘SIP Account Settings’ from the left menu bar.


    DPH-140S Account configuration page
  11. Enter the desired Display name for this extension in the ‘Display Name’ field, also input the extension number you want to associate with this phone in the ‘Sip User Name’ setting under the ‘Account 1 Setting’ Section.
  12. Confirm that the ‘Account Active’ switch under the ‘Account 1 Setting’ Section is set to ‘Enable’.
  13. Now enter an ‘Authentication Username’ & ‘Authentication Password’ in the appropriate fields. These fields must match the ID & password configured in the ‘ID’ & ‘Password’ fields in the Authentication section of the ‘Add Extension’ page in the 3CX Management Console.
  14. Click on the submit button at the bottom of the page to commit these settings. Restart the phone.
  15. After the phone has restarted, switch to the 3CX Phone System Management console, and click on Phone System > ‘Line Status’ (This is the default page). The extension should be listed, and the status should show ‘On Hook’.

SIP Phone Configuration Guides