Transcript error codes (mpbx-transcripts)

Raised by the transcript routes and the worker (W9-AI-04, W9-AI-05). Messages never contain audio, a transcript, a prompt or a key. Guide: Transcripts and AI summaries. Provider errors keep their MPBX-AI-* codes (AI errors).

Code	HTTP	Meaning	What to do
MPBX-TRANSCRIPT-NOT-FOUND	404	The recording or voicemail message has no transcript: transcription is off, the audio is older than the switch, or it is not transcribed yet. Also for an item outside the caller's reach after the permission check.	Switch transcription on in Admin > AI; wait for the next sweep.
MPBX-TRANSCRIPT-AUDIO-INVALID	-	The stored audio is not a PCM16 or G.711 WAV the pipeline can read; the transcript is marked failed (stored in error_code).	Report it; the recording itself is unaffected.
MPBX-TRANSCRIPT-SUMMARY-INVALID	-	The model's answer was not the requested JSON (stored in summary_error_code); retried, then failed.	Try another model; nothing was changed by the answer.
MPBX-TRANSCRIPT-QUERY-INVALID	400	The search text has fewer than 2 or more than 200 characters.	Change the text.