# Special Applications

Some applications require multiple connections, such as Internet gaming, video-conferencing, and Internet telephony. These applications may not work when Network Address Translation (NAT) is enabled. If you need to run applications that require multiple connections, use these pages to specify the additional public ports to be opened for each application.

The router has settings for some popular applications, or you can manually enter the Trigger Port, Trigger Type, Public Port, and Public Type settings for the application and select Enabled.

To use the settings available on your router:

1. Use the Popular applications list to select your application.
2. Select a line number.
3. Click COPY TO.
4. Click SAVE SETTINGS.