some work on adding answer/reject buttons to call notification

some minor improvements

app/src/main/AndroidManifest.xml

@@ -111,6 +111,16 @@
         <service android:name=".BaresipService" >
         </service>
 
+        <receiver
+            android:enabled="true"
+            android:exported="true"
+            android:name="com.tutpro.baresip.RunOnStartup"
+            android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
+            <intent-filter>
+                <action android:name="android.intent.action.BOOT_COMPLETED" />
+            </intent-filter>
+        </receiver>
+
     </application>
 
 </manifest>