Transfer-context lookup by original_call_sid ran
`redis.keys("transfer:context:*")` and iterated every match — an O(N)
blocking scan on call-control hot paths, duplicated across the ARI
manager and the Twilio/Telnyx conference strategies.
Maintain a `transfer:by_call_sid:{original_call_sid}` -> transfer_id
secondary index, written and cleared alongside the context in
store/remove, and resolve lookups with a direct GET. Route the
Twilio/Telnyx strategies through the manager so the lookup lives in one
place (also dropping per-call ad-hoc Redis connections).
Closes#328
Co-authored-by: shiminshen <16914659+shiminshen@users.noreply.github.com>
Conference-based transfer for Telnyx with a two-step flow:
- transfer_call dials the destination with a per-transfer webhook URL.
- On call.answered, the webhook seeds a conference with the destination's
live call_control_id and publishes DESTINATION_ANSWERED.
- TelnyxConferenceStrategy joins the caller into the conference on
pipeline teardown (EndTaskReason.TRANSFER_CALL).
- On post-answer destination hangup, the webhook hangs up the caller —
Telnyx's create_conference doesn't accept end_conference_on_exit on
the seed leg, so we tear down the bridge ourselves.
TransferContext gains optional workflow_run_id (for webhook→provider
resolution in multi-config orgs) and conference_id (set on answer,
rd by the strategy).
Also fixes the transfer tool's provider lookup to go through
get_telephony_provider_for_run instead of the deprecated org-default
shim, which was returning the wrong provider in multi-config orgs.
* feat: add headless widget for deployment
* feat: call callbacks at the right time
* feat: add onCallConnected & onCallDisconnected callback
* feat: add a button with text for floating widget
* feat: add headless widget for deployment
* feat: call callbacks at the right time
* feat: add onCallConnected & onCallDisconnected callback
* feat: add a button with text for floating widget
* docs: web widget
* fix: format issue in pre-pr drift check
* fix: fix CD to rely on pipecat dev dependey
* chore: update message
---------
Co-authored-by: Abhishek Kumar <abhishek@a6k.me>
* chore: bump pipecat version and fix tests
* chore: add github workflow to run tests
* fix: install reqirements.dev.txt in test script
* fix: fix api-test action
* feat: add integration test
* test: add integration tests
* test: add test for function call mute strategy
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.
