I am new to VOIP and the setup within sophos. We are looking to get a cloud solution to start with and see how it works. So my both brought in his ringcentral phone, but Ringcentral's website does not give great information on how to setup the system.
They state to open • 5060-5090 UDP
• 16384-16482 UDP
• 8000-8200 UDP
So I setup a firewall rule internal address->ports above->any. The phone call will ring on the destination phone, but on the ringcentral phone I can't hear the phone ringing or if someone picks up. I opened up everything for just a moment and it worked fine. Any->Any->Any
I see that the firewall is dropping (phone IP, 16384:16482), so the phones IP and source service is in that range, to the ringcentral server and a natted IP. Since the range 16384:16482 is the source service not the destination service the above firewall rule doesn't work.
I am sure it is something simple so I appreciate any help and the time taken.
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