diff --git a/src/com/android/server/telecom/CallsManager.java b/src/com/android/server/telecom/CallsManager.java
index 4eb22f4..a57449d 100644
--- a/src/com/android/server/telecom/CallsManager.java
+++ b/src/com/android/server/telecom/CallsManager.java
@@ -572,6 +572,7 @@
             CallAnomalyWatchdog callAnomalyWatchdog,
             Ringer.AccessibilityManagerAdapter accessibilityManagerAdapter,
             Executor asyncTaskExecutor,
+            Executor asyncCallAudioTaskExecutor,
             BlockedNumbersAdapter blockedNumbersAdapter,
             TransactionManager transactionManager,
             EmergencyCallDiagnosticLogger emergencyCallDiagnosticLogger,
@@ -606,7 +607,7 @@
                         statusBarNotifier,
                         audioServiceFactory,
                         CallAudioRouteStateMachine.EARPIECE_AUTO_DETECT,
-                        asyncTaskExecutor
+                        asyncCallAudioTaskExecutor
                 );
         callAudioRouteStateMachine.initialize();
 
diff --git a/src/com/android/server/telecom/TelecomSystem.java b/src/com/android/server/telecom/TelecomSystem.java
index 67bb81f..da325f7 100644
--- a/src/com/android/server/telecom/TelecomSystem.java
+++ b/src/com/android/server/telecom/TelecomSystem.java
@@ -223,6 +223,7 @@
             DeviceIdleControllerAdapter deviceIdleControllerAdapter,
             Ringer.AccessibilityManagerAdapter accessibilityManagerAdapter,
             Executor asyncTaskExecutor,
+            Executor asyncCallAudioTaskExecutor,
             BlockedNumbersAdapter blockedNumbersAdapter) {
         mContext = context.getApplicationContext();
         LogUtils.initLogging(mContext);
@@ -396,6 +397,7 @@
                     callAnomalyWatchdog,
                     accessibilityManagerAdapter,
                     asyncTaskExecutor,
+                    asyncCallAudioTaskExecutor,
                     blockedNumbersAdapter,
                     transactionManager,
                     emergencyCallDiagnosticLogger,
diff --git a/src/com/android/server/telecom/components/TelecomService.java b/src/com/android/server/telecom/components/TelecomService.java
index ef85fc7..90a683f 100644
--- a/src/com/android/server/telecom/components/TelecomService.java
+++ b/src/com/android/server/telecom/components/TelecomService.java
@@ -215,6 +215,7 @@
                                 }
                             },
                             Executors.newCachedThreadPool(),
+                            Executors.newSingleThreadExecutor(),
                             new BlockedNumbersAdapter() {
                                 @Override
                                 public boolean shouldShowEmergencyCallNotification(Context
diff --git a/tests/src/com/android/server/telecom/tests/CallsManagerTest.java b/tests/src/com/android/server/telecom/tests/CallsManagerTest.java
index 9f46336..56cf22f 100644
--- a/tests/src/com/android/server/telecom/tests/CallsManagerTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallsManagerTest.java
@@ -345,6 +345,8 @@
                 mAccessibilityManagerAdapter,
                 // Just do async tasks synchronously to support testing.
                 command -> command.run(),
+                // For call audio tasks
+                command -> command.run(),
                 mBlockedNumbersAdapter,
                 TransactionManager.getTestInstance(),
                 mEmergencyCallDiagnosticLogger,
diff --git a/tests/src/com/android/server/telecom/tests/TelecomSystemTest.java b/tests/src/com/android/server/telecom/tests/TelecomSystemTest.java
index b962b2a..fb35125 100644
--- a/tests/src/com/android/server/telecom/tests/TelecomSystemTest.java
+++ b/tests/src/com/android/server/telecom/tests/TelecomSystemTest.java
@@ -549,6 +549,7 @@
                     }
                 }, mDeviceIdleControllerAdapter, mAccessibilityManagerAdapter,
                 Runnable::run,
+                Runnable::run,
                 mBlockedNumbersAdapter);
 
         mComponentContextFixture.setTelecomManager(new TelecomManager(