[asterisk-users] Configuring Opus Forward Error Correction in Asterisk 16 (FreePBX)?

[Kevin H.]

Yes FEC must be enabled through configuration, but be aware that
enabling FEC does not necessarily mean it's being utilized. For
instance, in order for FEC data to be decoded by Sangoma's codec_opus
module for Asterisk several things must occur:

1) it must be enabled through configuration
2) both sides of a call must negotiate for it (via SDP)
3) packet loss must be perceived by the codec_opus module
4) a frame containing FEC data is received

Also, please see the following for more information:

https://wiki.asterisk.org/wiki/display/AST/Codec+Opus

https://wiki.asterisk.org/wiki/display/AST/Asterisk+19+Configuration_codec_opus

https://www.asterisk.org/configuring-opus-encoder-asterisk/

https://www.asterisk.org/asterisk-opus-packet-loss-fec/

- Kevin



On Wed, Jul 20, 2022 at 10:48 AM Brant Merryman <brant.merryman at mixhalo.com>
wrote:

> Hi. I am using Asterisk 16.27.0 in FreePBX 15.0.23.11. I installed via the
> FreePBX ISO (SNG7-PBX-64bit-2104.iso). I used the GUI to enable the Opus
> Codec in Asterisk SIP Settings and I can confirm the calls are using Opus
> 16000. How can I turn on fec. I am wondering if there might be a
> configuration file I need to modify to add “fec=yes” or something like that
> to turn this on.
>
> Thanks in advance for any help
>
> Brant Merryman
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