Hi Team,
While testing the Conference feature, I encountered the following issue.
When both the Moderator and Participant connect to the conference, FreeSWITCH logs the following error:
2026-08-04 13:07:21.633156 87.53% [ERR] switch_core_file.c:336 Unknown file Format [/usr/share/freeswitch/sounds/en/us/callie/none]<br>
It appears that FreeSWITCH is attempting to play an audio prompt from /usr/share/freeswitch/sounds/en/us/callie/none, which is not a valid audio file. As a result, the playback fails with an "Unknown file Format" error.
Could you please help identify why the conference is resolving the prompt to none instead of a valid sound file?
While testing the Conference feature, I encountered the following issue.
When both the Moderator and Participant connect to the conference, FreeSWITCH logs the following error:
2026-08-04 13:07:21.633156 87.53% [ERR] switch_core_file.c:336 Unknown file Format [/usr/share/freeswitch/sounds/en/us/callie/none]<br>
It appears that FreeSWITCH is attempting to play an audio prompt from /usr/share/freeswitch/sounds/en/us/callie/none, which is not a valid audio file. As a result, the playback fails with an "Unknown file Format" error.
Could you please help identify why the conference is resolving the prompt to none instead of a valid sound file?