UDP Port 48000 – nimcontroller
Community reports note 3CX uses outbound UDP 48000-65535 for audio and video in its web meetings.
About UDP Port 48000
Port 48000 is registered with the Internet Assigned Numbers Authority (IANA) for nimcontroller. The IANA description reads: ‘Nimbus Controller’.
Data Sources
This information is compiled from: IANA Service Name and Transport Protocol Port Number Registry.