diff --git a/tools/chatgui-android/app/src/main/java/com/utun/chat/data/AudioRecorderManager.kt b/tools/chatgui-android/app/src/main/java/com/utun/chat/data/AudioRecorderManager.kt
index b65766cb..d0060c40 100644
--- a/tools/chatgui-android/app/src/main/java/com/utun/chat/data/AudioRecorderManager.kt
+++ b/tools/chatgui-android/app/src/main/java/com/utun/chat/data/AudioRecorderManager.kt
@@ -138,6 +138,7 @@ class AudioRecorderManager {
     fun isActive(): Boolean = isRecording
 
     fun startMicTest(): Boolean {
+        if (StreamController.blocksCapture()) return false
         if (isTesting) return true
         if (!hasPermission()) return false
 
diff --git a/tools/chatgui-android/app/src/main/java/com/utun/chat/data/CallController.kt b/tools/chatgui-android/app/src/main/java/com/utun/chat/data/CallController.kt
index 6c8c32a0..8d2cec19 100644
--- a/tools/chatgui-android/app/src/main/java/com/utun/chat/data/CallController.kt
+++ b/tools/chatgui-android/app/src/main/java/com/utun/chat/data/CallController.kt
@@ -86,6 +86,7 @@ object CallController : TelecomCallManager.Listener {
 
     fun start(channelId: String, peerNodeId: Long, peerName: String) {
         checkMain()
+        if (StreamController.blocksCapture()) return
         if (channelId.isEmpty() || peerNodeId == 0L) {
             LogManager.addLog("ERROR", "Call", "invalid outgoing call channel=$channelId peer=$peerNodeId")
             return
@@ -107,6 +108,7 @@ object CallController : TelecomCallManager.Listener {
 
     fun accept() {
         checkMain()
+        if (StreamController.blocksCapture()) return
         val st = _state.value ?: return
         if (st.phase != CallPhase.INCOMING || accepting) {
             LogManager.addLog("WARN", "Call", "accept ignored id=${st.callId} phase=${st.phase} accepting=$accepting")
diff --git a/tools/chatgui-android/app/src/main/java/com/utun/chat/viewmodel/ChatViewModel.kt b/tools/chatgui-android/app/src/main/java/com/utun/chat/viewmodel/ChatViewModel.kt
index 376f5595..20488d8a 100644
--- a/tools/chatgui-android/app/src/main/java/com/utun/chat/viewmodel/ChatViewModel.kt
+++ b/tools/chatgui-android/app/src/main/java/com/utun/chat/viewmodel/ChatViewModel.kt
@@ -910,6 +910,7 @@ class ChatViewModel : ViewModel() {
         val groupId = ch.id.toULongOrNull()?.toLong() ?: return
         val wasOnHere = radioChannelId == ch.id
         val next = !wasOnHere
+        if (next && com.utun.chat.data.StreamController.blocksCapture()) return
         radioToggleCount++
         val caller = Throwable().stackTrace.drop(1).take(8)
             .joinToString(" <- ") { "${it.className.substringAfterLast('.')}.${it.methodName}:${it.lineNumber}" }