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5ee68f58bb
Telnyx's bidirectional stream uses different codecs per direction:
- Dograh → Telnyx: what we declare via `stream_bidirectional_codec`
- Telnyx → Dograh: whatever the PSTN leg negotiated (PCMA for UK,
Europe, India termination; PCMU for US), announced as
`media_format.encoding` on the WebSocket start message.
We hardcoded both directions on the serializer to PCMU, so any call
whose PSTN leg used PCMA arrived as A-law bytes that we decoded
through a μ-law table → static for the entire call.
`handle_websocket` now extracts `media_format.encoding` from the
start message and threads it through `transport_kwargs`. The
serializer uses it for the Telnyx → Dograh direction; the
Dograh → Telnyx direction stays pinned to PCMU to match the
unchanged `stream_bidirectional_codec` in the dial/answer payloads.
Note: pipecat's `TelnyxFrameSerializer` names its params from the
call's POV, not Dograh's — `inbound_encoding` is what we send into
the call, `outbound_encoding` is what we receive. Easy to mix up.
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| .. | ||
| auth | ||
| campaign | ||
| configuration | ||
| filesystem | ||
| gen_ai | ||
| gender | ||
| integrations | ||
| looptalk | ||
| pipecat | ||
| pricing | ||
| reports | ||
| smart_turn | ||
| telephony | ||
| worker_sync | ||
| workflow | ||
| mps_service_key_client.py | ||
| posthog_client.py | ||
| quota_service.py | ||
| storage.py | ||