DIAL TONE · channel spike

Which ggwave protocol survives which channel? Live tests over real phones, calls and radios, plus offline simulations.

Scope

Spectrogram 0–8 kHz · amber lines = phone/radio voice band 300–3400 Hz

Audio off

Channel under test

Protocol Volume

Messages are tagged like [DTF·room·03] so the receiving phone can log the protocol, channel and trial on its own.

Not listening

Decode a recording

time	side	channel	protocol	trial	text

Each phone keeps its own log in this browser. A "sent" row with no matching "heard" row on the other phone = a failure.

Messages per cell

What each simulated channel models

Runs each protocol through the browser's real Opus encoder at voice-note bitrates. Plays silently, in real time (~1 min).