WhatsApp Calls
This page covers the technical implementation for handling WhatsApp voice interactions and audio streams.WhatsApp Audio Architecture
Content coming soon.- Meta Cloud API voice note and audio stream integration
- Audio container specifications (
audio/ogg; codecs=opus) - Inbound vs. Outbound calling flows
Inbound Audio Ingestion & Transcoding
Content coming soon.- Receiving audio payload URLs via Meta webhooks
- Stream downloading and Opus-to-PCM normalization for STT
- Voice note transcription and intent recognition
Outbound Audio Response Synthesis
Content coming soon.- Transcoding neural TTS output into WhatsApp-compatible Opus containers
- Media upload to Meta Graph API
- Dispatching outbound voice messages and interactive audio responses