Voice call
When a call connects the gateway hands you the floor, so just talk —
the button will already read ON AIR. Pressing it then would only end your
turn. Afterwards, hold the button (or the spacebar) to take the floor back.
Audio is only sent while the floor says transmitting — the gateway decides, not
the button. Talk spurts are capped (20 s here) and if nobody keys up within the
reply window (6 s) the network ends the call.
Connect audio once (grants mic access), then place a call — you'll talk and hear
the radio in the browser. Audio bridges via WebRTC ↔ G.711. The service allows one audio session
and closes it when the call ends, so this page silently re-offers for each new call. (Use
localhost, not a LAN IP — the browser only allows mic capture on a secure context.)
SDS message
Default is reliable SDS-TL (what radios/Dispatcher use). Incoming SDS appears in the log below.