diff --git a/app/src/main/java/org/thoughtcrime/securesms/events/CallParticipant.kt b/app/src/main/java/org/thoughtcrime/securesms/events/CallParticipant.kt
index 418aa08201..a1f91d08b3 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/events/CallParticipant.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/events/CallParticipant.kt
@@ -67,6 +67,10 @@ data class CallParticipant(
     return copy(identityKey = identityKey)
   }
 
+  fun withAudioEnabled(audioEnabled: Boolean): CallParticipant {
+    return copy(isMicrophoneEnabled = audioEnabled)
+  }
+
   fun withVideoEnabled(videoEnabled: Boolean): CallParticipant {
     return copy(isVideoEnabled = videoEnabled)
   }
diff --git a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/ActiveCallActionProcessorDelegate.java b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/ActiveCallActionProcessorDelegate.java
index 846d4f9b2b..ae8de2654d 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/ActiveCallActionProcessorDelegate.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/ActiveCallActionProcessorDelegate.java
@@ -56,6 +56,21 @@ public class ActiveCallActionProcessorDelegate extends WebRtcActionProcessor {
     return currentState;
   }
 
+  @Override
+  protected @NonNull WebRtcServiceState handleRemoteAudioEnable(@NonNull WebRtcServiceState currentState, boolean enable) {
+    RemotePeer activePeer = currentState.getCallInfoState().requireActivePeer();
+
+    Log.i(tag, "handleRemoteAudioEnable(): call_id: " + activePeer.getCallId());
+
+    CallParticipant oldParticipant = Objects.requireNonNull(currentState.getCallInfoState().getRemoteCallParticipant(activePeer.getRecipient()));
+    CallParticipant newParticipant = oldParticipant.withAudioEnabled(enable);
+
+    return currentState.builder()
+                       .changeCallInfoState()
+                       .putParticipant(activePeer.getRecipient(), newParticipant)
+                       .build();
+  }
+
   @Override
   protected @NonNull WebRtcServiceState handleRemoteVideoEnable(@NonNull WebRtcServiceState currentState, boolean enable) {
     RemotePeer activePeer = currentState.getCallInfoState().requireActivePeer();
diff --git a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/ConnectedCallActionProcessor.java b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/ConnectedCallActionProcessor.java
index e618c24f99..1bbc223360 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/ConnectedCallActionProcessor.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/ConnectedCallActionProcessor.java
@@ -110,6 +110,11 @@ public class ConnectedCallActionProcessor extends DeviceAwareActionProcessor {
                        .build();
   }
 
+  @Override
+  protected @NonNull WebRtcServiceState handleRemoteAudioEnable(@NonNull WebRtcServiceState currentState, boolean enable) {
+    return activeCallDelegate.handleRemoteAudioEnable(currentState, enable);
+  }
+
   @Override
   protected @NonNull WebRtcServiceState handleRemoteVideoEnable(@NonNull WebRtcServiceState currentState, boolean enable) {
     return activeCallDelegate.handleRemoteVideoEnable(currentState, enable);
diff --git a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/IncomingCallActionProcessor.java b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/IncomingCallActionProcessor.java
index 5537792369..0023f3f64c 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/IncomingCallActionProcessor.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/IncomingCallActionProcessor.java
@@ -232,6 +232,11 @@ public class IncomingCallActionProcessor extends DeviceAwareActionProcessor {
     return currentState;
   }
 
+  @Override
+  protected @NonNull WebRtcServiceState handleRemoteAudioEnable(@NonNull WebRtcServiceState currentState, boolean enable) {
+    return activeCallDelegate.handleRemoteAudioEnable(currentState, enable);
+  }
+
   @Override
   protected @NonNull WebRtcServiceState handleRemoteVideoEnable(@NonNull WebRtcServiceState currentState, boolean enable) {
     return activeCallDelegate.handleRemoteVideoEnable(currentState, enable);
diff --git a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/OutgoingCallActionProcessor.java b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/OutgoingCallActionProcessor.java
index 1f30e0fbae..0431e5066c 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/OutgoingCallActionProcessor.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/OutgoingCallActionProcessor.java
@@ -233,6 +233,11 @@ public class OutgoingCallActionProcessor extends DeviceAwareActionProcessor {
                        .build();
   }
 
+  @Override
+  protected @NonNull WebRtcServiceState handleRemoteAudioEnable(@NonNull WebRtcServiceState currentState, boolean enable) {
+    return activeCallDelegate.handleRemoteAudioEnable(currentState, enable);
+  }
+
   @Override
   protected @NonNull WebRtcServiceState handleRemoteVideoEnable(@NonNull WebRtcServiceState currentState, boolean enable) {
     return activeCallDelegate.handleRemoteVideoEnable(currentState, enable);
diff --git a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/SignalCallManager.java b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/SignalCallManager.java
index 2e5b7ca039..063f491f95 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/SignalCallManager.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/SignalCallManager.java
@@ -616,11 +616,9 @@ public final class SignalCallManager implements CallManager.Observer, GroupCall.
         case REMOTE_CONNECTED:
           return p.handleCallConnected(s, remotePeer);
         case REMOTE_AUDIO_ENABLE:
-          // TODO: Implement handling when the remote enables audio.
-          break;
+          return p.handleRemoteAudioEnable(s, true);
         case REMOTE_AUDIO_DISABLE:
-          // TODO: Implement handling when the remote disables audio.
-          break;
+          return p.handleRemoteAudioEnable(s, false);
         case REMOTE_VIDEO_ENABLE:
           return p.handleRemoteVideoEnable(s, true);
         case REMOTE_VIDEO_DISABLE:
diff --git a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/WebRtcActionProcessor.java b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/WebRtcActionProcessor.java
index 0ad2523204..1e19488452 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/WebRtcActionProcessor.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/WebRtcActionProcessor.java
@@ -375,6 +375,11 @@ public abstract class WebRtcActionProcessor {
                        .build();
   }
 
+  protected @NonNull WebRtcServiceState handleRemoteAudioEnable(@NonNull WebRtcServiceState currentState, boolean enable) {
+    Log.i(tag, "handleRemoteAudioEnable not processed");
+    return currentState;
+  }
+
   protected @NonNull WebRtcServiceState handleRemoteVideoEnable(@NonNull WebRtcServiceState currentState, boolean enable) {
     Log.i(tag, "handleRemoteVideoEnable not processed");
     return currentState;