start adding call support

models/Call.php

@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of RaspiSMS.
+ *
+ * (c) Pierre-Lin Bonnemaison <plebwebsas@gmail.com>
+ *
+ * This source file is subject to the GPL-3.0 license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace models;
+
+    /**
+     * Manage bdd operations for calls
+     */ 
+    class Call extends StandardModel
+    {
+        const DIRECTION_INBOUND = 'inbound';
+        const DIRECTION_OUTBOUND = 'outbound';
+
+        /**
+         * Return table name.
+         */
+        protected function get_table_name(): string
+        {
+            return 'call';
+        }
+    }