Siavash Sameni b7a48bf13b feat(ui): incoming-call ring tone + system notification
Previously: incoming calls silently popped an "Accept/Reject"
panel. Easy to miss — no audible cue, no system-level alert if
the app was backgrounded. Now the incoming-call path triggers
both a synthesized ring tone and a system notification banner.

## Ring tone (desktop/src/main.ts)

New `Ringer` class using Web Audio API directly — no external
asset files, no new npm dep. Synthesizes a classic NANP two-tone
cadence (440Hz + 480Hz sine mix, 2s tone + 4s silence, looped)
through an envelope-gated gain node that ramps on/off to avoid
clicks. Audible on every Tauri-supported platform because
WebView carries Web Audio.

- `start()` — lazily creates AudioContext on first use
  (platforms that require a user gesture for AudioContext
  creation still work because the incoming-call event is
  user-adjacent from the webview's perspective), starts
  setInterval(6000) loop.
- `stop()` — clears the timer AND disconnects any active
  oscillators so there's no tail audio.
- Active-nodes array is swept every cycle so it doesn't grow
  unbounded across long rings.

Hooked into signal-event handlers:
- `"incoming"` → `ringer.start()` + notifyIncomingCall
- `"answered"`, `"setup"`, `"hangup"` → `ringer.stop()`
- Accept/Reject button click handlers → `ringer.stop()` as
  the first thing they do (before any await)

## System notification (desktop/src-tauri + main.ts)

Added `tauri-plugin-notification = "2"` to the Tauri app and
registered in the builder. Capabilities updated with the four
notification permissions.

Frontend calls the plugin commands via the generic `invoke`
instead of adding `@tauri-apps/plugin-notification` as a JS
dep — Tauri plugins expose `plugin:notification|notify` etc.
directly. Flow:

1. `is_permission_granted` — check cached
2. If not granted → `request_permission` (Android prompts the
   user once, cached thereafter)
3. `notify` with title="Incoming call", body="From <alias>"

All wrapped in try/catch with console.debug fallback — plugin
missing or permission denied is non-fatal, the visible panel +
ring tone still alert the user.

## Known gaps (deferred)

- Android native system ringtone (RingtoneManager) + full-
  screen intent for lockscreen-visible ringer. Requires
  platform-specific Java/Kotlin glue in the Tauri Android
  shell — bigger lift.
- Desktop window flash / taskbar attention-seek on incoming
  call when app is backgrounded.
- Vibration pattern on Android.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-11 18:46:13 +04:00

WarzonePhone

Custom lossy VoIP protocol built in Rust. E2E encrypted, FEC-protected, adaptive quality, designed for hostile network conditions.

Quick Start

# Build
cargo build --release

# Run relay
./target/release/wzp-relay --listen 0.0.0.0:4433

# Send a test tone
./target/release/wzp-client --send-tone 5 relay-addr:4433

# Web bridge (browser calls)
./target/release/wzp-web --port 8080 --relay 127.0.0.1:4433 --tls
# Open https://localhost:8080/room-name in two browser tabs

Architecture

See docs/ARCHITECTURE.md for the full system architecture with Mermaid diagrams covering:

  • System overview and data flow
  • Crate dependency graph (8 crates)
  • Wire formats (MediaHeader, MiniHeader, TrunkFrame, SignalMessage)
  • Cryptographic handshake (X25519 + Ed25519 + ChaCha20-Poly1305)
  • Identity model (BIP39 seed, featherChat compatible)
  • Quality profiles (GOOD/DEGRADED/CATASTROPHIC)
  • FEC protection (RaptorQ with interleaving)
  • Adaptive jitter buffer (NetEq-inspired)
  • Telemetry stack (Prometheus + Grafana)
  • Deployment topology

Features

  • 3 quality tiers: Opus 24k (28.8 kbps) / Opus 6k (9 kbps) / Codec2 1200 (2.4 kbps)
  • RaptorQ FEC: Recovers from 20-100% packet loss depending on tier
  • E2E encryption: ChaCha20-Poly1305 with X25519 key exchange
  • Adaptive jitter buffer: EMA-based playout delay tracking
  • Silence suppression: VAD + comfort noise (~50% bandwidth savings)
  • ML noise removal: RNNoise (nnnoiseless pure Rust port)
  • Mini-frames: 67% header compression for steady-state packets
  • Trunking: Multiplex sessions into batched datagrams
  • featherChat integration: Shared BIP39 identity, token auth, call signaling
  • Prometheus metrics: Relay, web bridge, inter-relay probes
  • Grafana dashboard: Pre-built JSON with 18 panels

Documentation

Document Description
ARCHITECTURE.md Full system architecture with diagrams
TELEMETRY.md Prometheus metrics specification
INTEGRATION_TASKS.md featherChat integration tracker
WZP-FC-SHARED-CRATES.md Shared crate strategy
grafana-dashboard.json Importable Grafana dashboard

Binaries

Binary Description
wzp-relay Relay daemon (SFU room mode, forward mode, probes)
wzp-client CLI client (send-tone, record, live mic, echo-test, drift-test, sweep)
wzp-web Browser bridge (HTTPS + WebSocket + AudioWorklet)
wzp-bench Component benchmarks

Linux Build

./scripts/build-linux.sh --prepare   # Create Hetzner VM + install deps
./scripts/build-linux.sh --build     # Build release binaries
./scripts/build-linux.sh --transfer  # Download to target/linux-x86_64/
./scripts/build-linux.sh --destroy   # Delete VM

Tests

cargo test --workspace   # 272 tests

License

MIT OR Apache-2.0

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