diff --git a/telecomm/java/android/telecom/CallControl.java b/telecomm/java/android/telecom/CallControl.java
index fe699af..a1407869 100644
--- a/telecomm/java/android/telecom/CallControl.java
+++ b/telecomm/java/android/telecom/CallControl.java
@@ -21,7 +21,6 @@
 import android.annotation.CallbackExecutor;
 import android.annotation.FlaggedApi;
 import android.annotation.NonNull;
-import android.annotation.Nullable;
 import android.annotation.SuppressLint;
 import android.os.Binder;
 import android.os.Bundle;
@@ -31,7 +30,6 @@
 import android.os.ResultReceiver;
 import android.text.TextUtils;
 
-import com.android.internal.telecom.ClientTransactionalServiceRepository;
 import com.android.internal.telecom.ICallControl;
 import com.android.server.telecom.flags.Flags;
 
@@ -52,20 +50,13 @@
 @SuppressLint("NotCloseable")
 public final class CallControl {
     private static final String TAG = CallControl.class.getSimpleName();
-    private static final String INTERFACE_ERROR_MSG = "Call Control is not available";
     private final String mCallId;
     private final ICallControl mServerInterface;
-    private final PhoneAccountHandle mPhoneAccountHandle;
-    private final ClientTransactionalServiceRepository mRepository;
 
     /** @hide */
-    public CallControl(@NonNull String callId, @Nullable ICallControl serverInterface,
-            @NonNull ClientTransactionalServiceRepository repository,
-            @NonNull PhoneAccountHandle pah) {
+    public CallControl(@NonNull String callId, @NonNull ICallControl serverInterface) {
         mCallId = callId;
         mServerInterface = serverInterface;
-        mRepository = repository;
-        mPhoneAccountHandle = pah;
     }
 
     /**
@@ -97,16 +88,14 @@
      */
     public void setActive(@CallbackExecutor @NonNull Executor executor,
             @NonNull OutcomeReceiver<Void, CallException> callback) {
-        if (mServerInterface != null) {
-            try {
-                mServerInterface.setActive(mCallId,
-                        new CallControlResultReceiver("setActive", executor, callback));
+        Objects.requireNonNull(executor);
+        Objects.requireNonNull(callback);
+        try {
+            mServerInterface.setActive(mCallId,
+                    new CallControlResultReceiver("setActive", executor, callback));
 
-            } catch (RemoteException e) {
-                throw e.rethrowAsRuntimeException();
-            }
-        } else {
-            throw new IllegalStateException(INTERFACE_ERROR_MSG);
+        } catch (RemoteException e) {
+            throw e.rethrowAsRuntimeException();
         }
     }
 
@@ -134,16 +123,12 @@
         validateVideoState(videoState);
         Objects.requireNonNull(executor);
         Objects.requireNonNull(callback);
-        if (mServerInterface != null) {
-            try {
-                mServerInterface.answer(videoState, mCallId,
-                        new CallControlResultReceiver("answer", executor, callback));
+        try {
+            mServerInterface.answer(videoState, mCallId,
+                    new CallControlResultReceiver("answer", executor, callback));
 
-            } catch (RemoteException e) {
-                throw e.rethrowAsRuntimeException();
-            }
-        } else {
-            throw new IllegalStateException(INTERFACE_ERROR_MSG);
+        } catch (RemoteException e) {
+            throw e.rethrowAsRuntimeException();
         }
     }
 
@@ -165,16 +150,14 @@
      */
     public void setInactive(@CallbackExecutor @NonNull Executor executor,
             @NonNull OutcomeReceiver<Void, CallException> callback) {
-        if (mServerInterface != null) {
-            try {
-                mServerInterface.setInactive(mCallId,
-                        new CallControlResultReceiver("setInactive", executor, callback));
+        Objects.requireNonNull(executor);
+        Objects.requireNonNull(callback);
+        try {
+            mServerInterface.setInactive(mCallId,
+                    new CallControlResultReceiver("setInactive", executor, callback));
 
-            } catch (RemoteException e) {
-                throw e.rethrowAsRuntimeException();
-            }
-        } else {
-            throw new IllegalStateException(INTERFACE_ERROR_MSG);
+        } catch (RemoteException e) {
+            throw e.rethrowAsRuntimeException();
         }
     }
 
@@ -213,15 +196,11 @@
         Objects.requireNonNull(executor);
         Objects.requireNonNull(callback);
         validateDisconnectCause(disconnectCause);
-        if (mServerInterface != null) {
-            try {
-                mServerInterface.disconnect(mCallId, disconnectCause,
-                        new CallControlResultReceiver("disconnect", executor, callback));
-            } catch (RemoteException e) {
-                throw e.rethrowAsRuntimeException();
-            }
-        } else {
-            throw new IllegalStateException(INTERFACE_ERROR_MSG);
+        try {
+            mServerInterface.disconnect(mCallId, disconnectCause,
+                    new CallControlResultReceiver("disconnect", executor, callback));
+        } catch (RemoteException e) {
+            throw e.rethrowAsRuntimeException();
         }
     }
 
@@ -245,15 +224,13 @@
      */
     public void startCallStreaming(@CallbackExecutor @NonNull Executor executor,
             @NonNull OutcomeReceiver<Void, CallException> callback) {
-        if (mServerInterface != null) {
-            try {
-                mServerInterface.startCallStreaming(mCallId,
-                        new CallControlResultReceiver("startCallStreaming", executor, callback));
-            } catch (RemoteException e) {
-                throw e.rethrowAsRuntimeException();
-            }
-        } else {
-            throw new IllegalStateException(INTERFACE_ERROR_MSG);
+        Objects.requireNonNull(executor);
+        Objects.requireNonNull(callback);
+        try {
+            mServerInterface.startCallStreaming(mCallId,
+                    new CallControlResultReceiver("startCallStreaming", executor, callback));
+        } catch (RemoteException e) {
+            throw e.rethrowAsRuntimeException();
         }
     }
 
@@ -281,15 +258,11 @@
         Objects.requireNonNull(callEndpoint);
         Objects.requireNonNull(executor);
         Objects.requireNonNull(callback);
-        if (mServerInterface != null) {
-            try {
-                mServerInterface.requestCallEndpointChange(callEndpoint,
-                        new CallControlResultReceiver("endpointChange", executor, callback));
-            } catch (RemoteException e) {
-                throw e.rethrowAsRuntimeException();
-            }
-        } else {
-            throw new IllegalStateException(INTERFACE_ERROR_MSG);
+        try {
+            mServerInterface.requestCallEndpointChange(callEndpoint,
+                    new CallControlResultReceiver("requestCallEndpointChange", executor, callback));
+        } catch (RemoteException e) {
+            throw e.rethrowAsRuntimeException();
         }
     }
 
@@ -313,20 +286,16 @@
      *                 passed that details why the operation failed.
      */
     @FlaggedApi(Flags.FLAG_SET_MUTE_STATE)
-    public void setMuteState(boolean isMuted, @CallbackExecutor @NonNull Executor executor,
+    public void requestMuteState(boolean isMuted, @CallbackExecutor @NonNull Executor executor,
             @NonNull OutcomeReceiver<Void, CallException> callback) {
         Objects.requireNonNull(executor);
         Objects.requireNonNull(callback);
-        if (mServerInterface != null) {
-            try {
-                mServerInterface.setMuteState(isMuted,
-                        new CallControlResultReceiver("setMuteState", executor, callback));
+        try {
+            mServerInterface.setMuteState(isMuted,
+                    new CallControlResultReceiver("requestMuteState", executor, callback));
 
-            } catch (RemoteException e) {
-                throw e.rethrowAsRuntimeException();
-            }
-        } else {
-            throw new IllegalStateException(INTERFACE_ERROR_MSG);
+        } catch (RemoteException e) {
+            throw e.rethrowAsRuntimeException();
         }
     }
 
@@ -352,14 +321,10 @@
     public void sendEvent(@NonNull String event, @NonNull Bundle extras) {
         Objects.requireNonNull(event);
         Objects.requireNonNull(extras);
-        if (mServerInterface != null) {
-            try {
-                mServerInterface.sendEvent(mCallId, event, extras);
-            } catch (RemoteException e) {
-                throw e.rethrowAsRuntimeException();
-            }
-        } else {
-            throw new IllegalStateException(INTERFACE_ERROR_MSG);
+        try {
+            mServerInterface.sendEvent(mCallId, event, extras);
+        } catch (RemoteException e) {
+            throw e.rethrowAsRuntimeException();
         }
     }