diff --git a/traccar-client/build.gradle b/traccar-client/build.gradle
index 40d09de..aed4ffc 100644
--- a/traccar-client/build.gradle
+++ b/traccar-client/build.gradle
@@ -33,4 +33,5 @@ android {
 }
 
 dependencies {
+    testCompile 'junit:junit:4.12'
 }
diff --git a/traccar-client/src/main/java/org/traccar/client/RequestManager.java b/traccar-client/src/main/java/org/traccar/client/RequestManager.java
new file mode 100644
index 0000000..def8b3d
--- /dev/null
+++ b/traccar-client/src/main/java/org/traccar/client/RequestManager.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.client;
+
+public class RequestManager {
+
+    public interface RequestHandler {
+        void onSuccess();
+        void onFailure();
+    }
+
+    public static void sendRequest(String request, RequestHandler handler) {
+
+        handler.onSuccess();
+
+    }
+
+}
diff --git a/traccar-client/src/test/java/org/traccar/client/RequestManagerTest.java b/traccar-client/src/test/java/org/traccar/client/RequestManagerTest.java
new file mode 100644
index 0000000..6d5dd1c
--- /dev/null
+++ b/traccar-client/src/test/java/org/traccar/client/RequestManagerTest.java
@@ -0,0 +1,29 @@
+
+package org.traccar.client;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertNull;
+
+public class RequestManagerTest {
+
+    @Test
+    public void testSendRequest() throws Exception {
+
+        assertNull(null);
+
+        //ApelProtocolDecoder decoder = new ApelProtocolDecoder(new ApelProtocol());
+
+        /*byte[] buf1 = {0x40,0x4E,0x54,0x43,0x01,0x00,0x00,0x00,0x7B,0x00,0x00,0x00,0x13,0x00,0x44,0x34,0x2A,0x3E,0x53,0x3A,0x38,0x36,0x31,0x37,0x38,0x35,0x30,0x30,0x35,0x32,0x30,0x35,0x30,0x37,0x39};
+        assertNull(decoder.decode(null, null, ChannelBuffers.wrappedBuffer(ByteOrder.LITTLE_ENDIAN, buf1)));*/
+
+        //0c002900f12a00000f003235303032363533343135313036340f0033353638393530333632373938313101002000000000
+        //5c00380046e6a95136b693277f11b41a00172709f2ff03160002b9bc630007000000000000000000000000000000c31071090000880500000000000000000000
+        //5c00380072e7a95136b693277f11b41a00172709f2ff03160002b9bc630007000000000000000000000000000000c31071090000880500000000000000000000
+
+        //7900040069ea030000000000
+        //8300c20003006aea03005c003800223aab5107a393276617b41a0030d506e3000414010250bf630007000000000000000000000000000000c3107209000089050000000000006bea03005c003800403aab5107a393276617b41a0030d506e3000414010250bf630007000000000000000000000000000000c3107209000089050000000000006cea03005c0038005e3aab5107a393276617b41a0030d506e3000414010250bf630007000000000000000000000000000000c31072090000890500000000000000000000
+
+    }
+
+}