FreePBX HA-1 Way Audio

If you are experiencing one-way audio on your FreePBX HA setup, this means something on your setup is not correct. Below are the common culprits.

SIP Settings

• In the SIP Settings module in FreePBX, make sure that you have defined these IP addresses:

  • The external IP address that your trunks or extensions are connecting to

  • The internal IP subnet that is set up

• You also need to make sure you bind asterisk to the floating IP address in the SIP Settings module.

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Ports

• Make sure you have ports 5060 and 10000-20000 UDP opened on your firewall, pointing to the floating IP address.

• Make sure all SIP ALG and SIP Helpers are disabled on the firewall.

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