PPOE

Owns

• Operator web interface and phone communications.
• Live paging, stored message playback, and launch sequence playback.
• Audio routing, zone control, relay control, and traffic light control.
• Runtime status reporting and receiver communications.

Does Not Own

• Phone provisioning, APK installation, USB importing, backups, log management, DNS, or DHCP.
• Live/runtime TTS.

Runtime Components

• server.js owns commands, priorities, UI state, message state, live-page state, sequence state, traffic state, and logical relay/indicator state.
• audio_receiver.js owns live microphone UDP audio, receiver-side live-page chimes, and direct multichannel aplay output.
• audio_mixer.js owns canned message playback and canned-message chimes.
• public/index.html owns the phone operator UI workflow and visual state.

Current UI Direction

• LP buttons are evolving into Launch Pad Status Cards.
• Remove bottom status bar and increase top status bar height.
• Phone icon replaces ON:; add battery and Wi-Fi icons.
• Battery changes color by state and pulses below 15%.
• Zone buttons become approximately 10% taller.
• Keep LP label centered, countdown centered, current sequence message beneath countdown, and progress bar retained.

Major Work Completed

• Sequence playback exposed through select-action/select-target workflow.
• Sequence UI shows per-zone status, countdown, current announcement, pause/resume behavior, and server-based time alignment.
• Message playback lifecycle uses detected duration for UI only; playback waits for natural audio process exit before relay release and sequence advancement.
• Find Phones can be started and stopped by PPSM through PPOE commands.
• /health was added for PPSM visibility into PPOE status, uptime, and message package freshness.