port firewall tunnel 3cxphone ios

  1. Securing 3cx....

    Few questions..... 1. Is there a way to configure 3cxPhone (softphone) and IOS App to use port 5090 (tunnel) only from outside of our network. I'm trying to restrict SIP access to just our VoIP provider. We can't do this with dynamic IP addresses so was hoping using the 3cx tunnel would get...
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