PTT for whisplay

AGENTS.md

@@ -28,14 +28,27 @@ Single-file Python application for managing LXST Channel connections via Reticul
 
 ## Whisplay GUI Controls
 
+  ### Channel list (STATE_READY)
+
   Short press (<1s)     Cycle to next channel in list
   Long press (>=1s)     Call the selected channel
-  Press (while in call) Hang up
 
-  RGB LED indicates state:
+  ### In call (STATE_IN_CALL) — Push-to-Talk mode (default)
+
+  Press & hold           Talk (unmute microphone)
+  Release                Stop talking (mute microphone)
+  Double-press           Toggle to always-on mode
+
+  ### In call — Always-on mode (toggled)
+
+  Press                  Hang up
+  Double-press           Toggle to push-to-talk mode
+
+  ### RGB LED indicates state:
     Blue   = ready, showing channels
     Orange = calling
     Green  = in call
+    Yellow = transmitting (PTT mode, mic active)
 
 ## Initial Setup Order