Port Forwarding (NAT) Policies for Flowroute's Direct Audio
To ensure you receive all audio on your Flowroute calls, specific Port Forwarding/NAT policies should be put in place on your network. The following two Port Forwarding network address translation (NAT) policies are required:
RTP media (call audio): To reduce latency, Flowroute uses Direct Audio. To receive Direct Audio, allow UDP packets from any source IP address with a destination port within your system's RTP media port range; forward to your PBX's local IP address.
If you are using a Sonicwall firewall, pfSense firewall, or IP Tables, please see the following for specific configuration tips:
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