v0.4.1

Fixed

• pause now pauses. It stops caller audio and DTMF going to the agent, holds queued
  agent audio and suspends barge-in until resume (mod_audio_stream semantics, which
  controllers rely on for "pause until pickCall"). Before, it only closed the ready-gate: the
  agent kept hearing the caller while "paused", and in the default ready=firstframe mode the
  next agent frame reopened the gate. status reports paused.
• Agent audio frames of any size are played whole. The native/Deepgram/Vapi binary path
  (clamped at 8 KB: 256 ms of L16 at 16 kHz), the pipecat protobuf path and the base64 JSON
  paths (16 KB) decoded into one fixed buffer and silently dropped the rest of a larger frame.
  Large frames are now decoded in pieces. Regression test: test/test_proto_audio.c
  (native L16/PCMU, pipecat protobuf, OpenAI base64 delta).
• mask on|off covers every stream on the channel, including fan-out transcription or
  supervisor streams, from the operator API and from the agent's mask command, and a stream
  started inside an open window starts masked before its media bug goes live. Before, it
  masked only the stream it was addressed to, so a side stream kept receiving the card number.
• Twilio marks are echoed at their position in the audio, after the audio queued before
  each mark has played, in order. Before, every pending mark was echoed only once the whole
  play buffer drained. Marks pinned to audio discarded by a flush/clear are still echoed at
  once (Twilio reports cleared marks too).
• The caller hears FreeSWITCH's own audio while the agent is silent. WRITE_REPLACE used to
  replace every outbound frame with silence when no agent audio was queued, which muted the
  controller's ringback (uuid_broadcast) and hold music until the agent's first word. The
  frame is now left untouched unless agent audio is being played; for 300 ms after the last
  agent frame the line stays silent, so gaps between chunks of one utterance do not let the
  underlying audio blip through. A barge-in hands the line back at once.
• Cross-thread control flags (ready, paused, masking) are read and written with
  atomics instead of plain loads and stores.

Changed

• es_ws.h no longer calls itself a reviewed draft; the header describes the shared
  service-thread pool that has been in place since 0.1.0.
• Docs: new docs/MODULE-VS-AGENT.md explaining what module-side VAD is (energy endpointing, not a
  turn model), when to leave it off (agents with their own VAD), and why edge latency metrics differ
  from agent-side metrics; README/FEATURES/WHY say "VAD endpointing" instead of "turn detection".

Binaries

Built by CI from this tag on Debian 12 (bookworm), amd64, against the SignalWire FreeSWITCH packages:

File	FreeSWITCH
mod-earshot_0.4.1_fs1.11_debian12_amd64.deb / .so	1.11.x
mod-earshot_0.4.1_fs1.10_debian12_amd64.deb / .so	1.10.x

Needs libwebsockets (apt install libwebsockets16 on bookworm). Checksums in SHA256SUMS. Other distributions: build from source, see the README quickstart.