diff --git a/app/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java b/app/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java
index 3b20fa60bb..9efd93de10 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java
@@ -426,6 +426,9 @@ public class ApplicationContext extends MultiDexApplication implements AppForegr
       if (FeatureFlags.callingFieldTrialAnyAddressPortsKillSwitch()) {
         fieldTrials.put("RingRTC-AnyAddressPortsKillSwitch", "Enabled");
       }
+      if (!SignalStore.internalValues().callingDisableLBRed()) {
+        fieldTrials.put("RingRTC-Audio-LBRed-For-Opus", "Enabled,bitrate_pri:22000");
+      }
       CallManager.initialize(this, new RingRtcLogger(), fieldTrials);
     } catch (UnsatisfiedLinkError e) {
       throw new AssertionError("Unable to load ringrtc library", e);
diff --git a/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/InternalSettingsFragment.kt b/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/InternalSettingsFragment.kt
index c905a02d5d..c8d6081aa6 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/InternalSettingsFragment.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/InternalSettingsFragment.kt
@@ -492,9 +492,17 @@ class InternalSettingsFragment : DSLSettingsFragment(R.string.preferences__inter
         }
       )
 
-      if (SignalStore.donationsValues().getSubscriber() != null) {
-        dividerPref()
+      switchPref(
+        title = DSLSettingsText.from("Disable LBRed"),
+        isChecked = state.callingDisableLBRed,
+        onClick = {
+          viewModel.setInternalCallingDisableLBRed(!state.callingDisableLBRed)
+        }
+      )
 
+      dividerPref()
+
+      if (SignalStore.donationsValues().getSubscriber() != null) {
         sectionHeaderPref(DSLSettingsText.from("Badges"))
 
         clickPref(
@@ -527,6 +535,8 @@ class InternalSettingsFragment : DSLSettingsFragment(R.string.preferences__inter
             Toast.makeText(context, "Cleared", Toast.LENGTH_SHORT).show()
           }
         )
+
+        dividerPref()
       }
 
       if (state.hasPendingOneTimeDonation) {
diff --git a/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/InternalSettingsState.kt b/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/InternalSettingsState.kt
index bee7b82be2..db9d1f5ecb 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/InternalSettingsState.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/InternalSettingsState.kt
@@ -15,6 +15,7 @@ data class InternalSettingsState(
   val callingAudioProcessingMethod: CallManager.AudioProcessingMethod,
   val callingDataMode: CallManager.DataMode,
   val callingDisableTelecom: Boolean,
+  val callingDisableLBRed: Boolean,
   val useBuiltInEmojiSet: Boolean,
   val emojiVersion: EmojiFiles.Version?,
   val removeSenderKeyMinimium: Boolean,
diff --git a/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/InternalSettingsViewModel.kt b/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/InternalSettingsViewModel.kt
index eef30986c3..32df841908 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/InternalSettingsViewModel.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/InternalSettingsViewModel.kt
@@ -113,6 +113,11 @@ class InternalSettingsViewModel(private val repository: InternalSettingsReposito
     refresh()
   }
 
+  fun setInternalCallingDisableLBRed(enabled: Boolean) {
+    preferenceDataStore.putBoolean(InternalValues.CALLING_DISABLE_LBRED, enabled)
+    refresh()
+  }
+
   fun setUseConversationItemV2Media(enabled: Boolean) {
     SignalStore.internalValues().setUseConversationItemV2Media(enabled)
     refresh()
@@ -142,6 +147,7 @@ class InternalSettingsViewModel(private val repository: InternalSettingsReposito
     callingAudioProcessingMethod = SignalStore.internalValues().callingAudioProcessingMethod(),
     callingDataMode = SignalStore.internalValues().callingDataMode(),
     callingDisableTelecom = SignalStore.internalValues().callingDisableTelecom(),
+    callingDisableLBRed = SignalStore.internalValues().callingDisableLBRed(),
     useBuiltInEmojiSet = SignalStore.internalValues().forceBuiltInEmoji(),
     emojiVersion = null,
     removeSenderKeyMinimium = SignalStore.internalValues().removeSenderKeyMinimum(),
diff --git a/app/src/main/java/org/thoughtcrime/securesms/keyvalue/InternalValues.java b/app/src/main/java/org/thoughtcrime/securesms/keyvalue/InternalValues.java
index 884fef1f8b..eff23ac9a3 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/keyvalue/InternalValues.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/keyvalue/InternalValues.java
@@ -25,6 +25,7 @@ public final class InternalValues extends SignalStoreValues {
   public static final String CALLING_AUDIO_PROCESSING_METHOD      = "internal.calling_audio_processing_method";
   public static final String CALLING_DATA_MODE                    = "internal.calling_bandwidth_mode";
   public static final String CALLING_DISABLE_TELECOM              = "internal.calling_disable_telecom";
+  public static final String CALLING_DISABLE_LBRED                = "internal.calling_disable_lbred";
   public static final String SHAKE_TO_REPORT                      = "internal.shake_to_report";
   public static final String DISABLE_STORAGE_SERVICE              = "internal.disable_storage_service";
   public static final String FORCE_WEBSOCKET_MODE                 = "internal.force_websocket_mode";
@@ -172,6 +173,17 @@ public final class InternalValues extends SignalStoreValues {
     }
   }
 
+  /**
+   * Whether or not LBRed for Opus is manually disabled.
+   */
+  public synchronized boolean callingDisableLBRed() {
+    if (FeatureFlags.internalUser()) {
+      return getBoolean(CALLING_DISABLE_LBRED, false);
+    } else {
+      return true;
+    }
+  }
+
   /**
    * Whether or not the system is forced to be in 'websocket mode', where FCM is ignored and we use a foreground service to keep the app alive.
    */