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    PFSense 2.2.1 NAT issues with VoIP.

    NAT
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      Forcys last edited by

      Hello everyone,

      We are using 16 Cisco SIP phone's in combination with an PFsense modem.
      The 16 phones is making contact to a hosted platform. Which is using port 5060 for SIP and ports 10000 – 20000 for RTP.

      The problem is that there occurs one-way audio. They can’t hear us anymore. So that will be an firewall problem.

      The things I have already done;

      • Changed “Firewall Optimization Options” to “conservative”.
      • Configured portforward for all the phones.
      • Configured “NAT outbound” to “manual” and added the phone’s IP addresses.
      • Installed “Siproxd”. But don’t really know how to configure this correctly.

      I’m hoping that someone has some tips and could help me.

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