diff --git a/source/include/coap_server_impl.h b/source/include/coap_server_impl.h
new file mode 100644
index 0000000000..707171fd48
--- /dev/null
+++ b/source/include/coap_server_impl.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2015 ARM. All rights reserved.
+ */
+
+/*
+ * \file -
+ * \brief Platform specifig implementation file
+ * 
+ */
+
+#ifndef COAP_SERVER_IMPL_H_
+#define COAP_SERVER_IMPL_H_
+
+#include "ns_types.h"
+#include "eventOS_event.h"
+#include "coap_service_api.h"
+
+int8_t coap_server_start(void);
+
+void *memory_allocation(uint16_t size);
+
+void memory_free(void* ptr);
+
+static int8_t coap_server_service_tasklet_generated(void);
+
+void coap_server_service_tasklet(arm_event_s * event);
+
+uint16_t socket_open(uint16_t listen_port, coap_service_request_recv_cb *requst_recv_cb);
+
+#endif /* COAP_SERVER_IMPL_H_ */