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Set Firewall Policies for Flowroute's SIP Signaling and RTP Media

To ensure you receive all audio on your Flowroute calls, two specific policies must be put in place on your network's firewall.

SIP signaling (call control) 

Allow UDP and TCP traffic over port 5060[1] from the following server IP addresses:


New PoPs IP Ranges

If you are on one of Flowroute's new Points of Presence (PoPs), make sure to add all of the following IP ranges to your whitelist. This ensures you take advantage of the failover and load balancing capabilities of the new PoPs.

Point of Presence (PoP) IP Range

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.[2] 

[1] If your system has issues connecting over port 5060, you can use 5160 as an alternate SIP port.
[2] RTP media port range varies by phone system. Your system's RTP media port range will be configured locally on your system and/or detailed in your system documentation. 


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