Need of opening ports

Wha’s the purpose on opening all of these ports:

  • 40000 - 57000 TCP+UDP** : used by Kurento Media Server to establish media connections.
  • 57001 - 65535 TCP+UDP** : used by TURN server to establish relayed media connections.

Closing a few of those could cause any problem?

The description indicates the porpouse.

It is better to let the ports open as indicated in the docs or maybe some participants can have issues with the media.