In-call transcription enables real-time STT on live voice calls. The audio codec is managed by the Telnyx platform — no format configuration needed. Two integration paths:Documentation Index
Fetch the complete documentation index at: https://developers.telnyx.com/llms.txt
Use this file to discover all available pages before exploring further.
- Voice API —
transcription_start/transcription_stopcommands on active calls. See the Voice API STT guide. - TeXML — XML-based call flow with transcription directives. See the TeXML transcription guide.