Hey Guys,<br><br>Thought the port question was asked a number of times, I couldn't find an answer to this. So please bear with me. I have a Freeswitch box that is on the Internet without any sort of NAT. I want to block as much ports as possible on this box while still allowing Freeswitch to 1) receive calls from Voip providers and 2) send calls to other VoIP providers.<br>
<br>What port can I block and what ports do I need to let open?<br><br>I know 5080 needs to be open. But can I restrict the RTP ports to, say, only 20000?<br><br>Thanks so much.<br>Max.<br>