Configuring Micronet SP 5050, 5052, 5054 for 3CX Phone System

The D-Link DVG-3004S, Micronet SP 5050, Micronet 5054 and the Micronet 5052 are based on the same design and software, and are therefore practically identical. To set-up any of those VOIP gateways for 3CX Phone System follow these steps:

  1. Ensure that you have created the PSTN lines in 3CX Phone System first. Take note of the Authentication ID field and the Authentication password that you have entered for each line connected to the VOIP Gateway.
  2. Connect the D-Link gateway to the network and mains power supply. The device will boot up, and providing you have DHCP installed on your network, will obtain an IP. To get the exact IP number, check the most recent DHCP lease, or alternatively use a network scanner to find a device with the string ‘D-Link’.
  3. Now point your browser to the gateway’s configuration site: ‘http://’ where is the IP address leased to the gateway.
  4. Enter the user name and password of the device and click ‘OK’ to access the gateway’s configuration. The default username is root and the default password is blank.


    D-Link DVG-3004S gateway SIP configuration
  5. Click on the “SIP Configuration” button on the Interface’s left hand side menu to load the SIP Configuration Settings page.
  6. Ensure that the “Mode” is set to “Proxy”
  7. In the ‘Primary Proxy IP Address’ field, enter the IP or the machine name on which 3CX Phone system is running.
  8. In the ‘Primary Proxy port’ field enter 5060, which is the default SIP port of 3CX Phone System.
  9. In the “Line Number” fields, enter the line numbers of the PSTN lines you created in the 3CX Management console.
  10. Enter the SIP port to be used by the gateway (default 5060), and the desired RTP port for the outbound connection.
  11. The “Expire” field sets the interval at which the gateway device will renew its line registration with the 3CX Phone System Server. We recommend a value of 1 hour, i.e. 3600 seconds.
  12. Click on the “OK” button to save the changes.


    D-Link DVG-3004S gateway Security Configuration

  13. Now click on the “Security configuration” button in the left hand side menu to load the Authentication Settings page.
  14. Enter the “Line Account” and “Line Password” value for each configured line. These values have to match the line’s Authentication ID and Authentication Password as configured for the line in the 3CX Phone System management console.
  15. Click on “OK” button to save the changes.

    D-Link DVG-3004S Line Configuration
  16. Now click on the ‘Line Configuration’ button in the left hand side menu to load the ‘Line Configuration’ page. In this page you configure how to handle calls coming in on the PSTN lines.
  17. To configure the gateway to forward inbound calls from the PSTN line to the appropriate 3CX Phone System line, input the internal number (as configured for that line in the 3CX Phone System management console) in the “Hot Line” field. Repeat this for all the lines. You must specify a different number then in the ‘Line Number’ field on the SIP configuration page, otherwise the device will loop the incoming calls. Therefore, use the line number field in the SIP configuration page and the internal number in the hot line field in the Line Configuration page.
  18. Click on “OK” button to save the changes.
  19. In the left hand side menu click on the “Commit data” button, then click on the ‘commit’ button in the loaded page.
  20. Reboot the D-Link gateway.
  21. After the gateway has restarted, switch to the 3CX Phone System Management console, and click on Phone System > ‘Line Status’ (This is the default page). In the section ‘External Lines’, the PSTN lines connected to the VOIP Gateway should be listed with a green status light.

VOIP Gateway Configuration Guides