diff --git a/types/intl-tel-input/index.d.ts b/types/intl-tel-input/index.d.ts
index 667a210087..f0c8407f18 100644
--- a/types/intl-tel-input/index.d.ts
+++ b/types/intl-tel-input/index.d.ts
@@ -1,9 +1,21 @@
 // Type definitions for intl-tel-input 14.0
 // Project: https://github.com/jackocnr/intl-tel-input
-// Definitions by: Fidan Hakaj <https://github.com/fdnhkj>, Leonard Thieu <https://github.com/leonard-thieu>, Márton Molnár <https://github.com/molnarm>
+// Definitions by: Fidan Hakaj <https://github.com/fdnhkj>
+//                 Leonard Thieu <https://github.com/leonard-thieu>
+//                 Márton Molnár <https://github.com/molnarm>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.3
 
+export as namespace intlTelInput;
+
+export = IntlTelInput;
+
+/**
+ * initialise the plugin with optional options.
+ * @param options options that can be provided during initialization.
+ */
+declare function IntlTelInput(node: Element, options?: IntlTelInput.Options): IntlTelInput.Plugin;
+
 declare namespace IntlTelInput {
     interface Static {
         /**
@@ -25,6 +37,8 @@ declare namespace IntlTelInput {
     }
 
     interface Plugin {
+        promise: Promise<void>;
+
         /**
          * Remove the plugin from the input, and unbind any event listeners.
          */
@@ -386,16 +400,50 @@ declare namespace intlTelInputUtils {
         | "VOIP";
 }
 
-interface Window {
-    intlTelInputGlobals: IntlTelInput.Static;
+declare global {
+    namespace intlTelInputUtils {
+        enum numberFormat {
+            E164 = 0,
+            INTERNATIONAL = 1,
+            NATIONAL = 2,
+            RFC3966 = 3
+        }
 
-    /**
-     * initialise the plugin with optional options.
-     * @param options options that can be provided during initialization.
-     */
-    intlTelInput(node: Element, options?: IntlTelInput.Options): IntlTelInput.Plugin;
-}
+        enum numberType {
+            FIXED_LINE = 0,
+            MOBILE = 1,
+            FIXED_LINE_OR_MOBILE = 2,
+            TOLL_FREE = 3,
+            PREMIUM_RATE = 4,
+            SHARED_COST = 5,
+            VOIP = 6,
+            PERSONAL_NUMBER = 7,
+            PAGER = 8,
+            UAN = 9,
+            VOICEMAIL = 10,
+            UNKNOWN = -1
+        }
 
-interface JQuery {
-    intlTelInput: IntlTelInput.JQueryPlugin;
+        enum validationError {
+            IS_POSSIBLE = 0,
+            INVALID_COUNTRY_CODE = 1,
+            TOO_SHORT = 2,
+            TOO_LONG = 3,
+            NOT_A_NUMBER = 4
+        }
+    }
+
+    interface Window {
+        intlTelInputGlobals: IntlTelInput.Static;
+
+        /**
+         * initialise the plugin with optional options.
+         * @param options options that can be provided during initialization.
+         */
+        intlTelInput(node: Element, options?: IntlTelInput.Options): IntlTelInput.Plugin;
+    }
+
+    interface JQuery {
+        intlTelInput: IntlTelInput.JQueryPlugin;
+    }
 }
diff --git a/types/intl-tel-input/intl-tel-input-tests.ts b/types/intl-tel-input/intl-tel-input-tests.ts
index ab6808bbed..6bb705cafb 100644
--- a/types/intl-tel-input/intl-tel-input-tests.ts
+++ b/types/intl-tel-input/intl-tel-input-tests.ts
@@ -1,5 +1,10 @@
 /// <reference types="jquery" />
 
+// Global
+
+// $ExpectType (node: Element, options?: Options) => Plugin
+intlTelInput;
+
 // Normal version
 
 const input = document.querySelector("#phone");
diff --git a/types/intl-tel-input/test/module-tests.ts b/types/intl-tel-input/test/module-tests.ts
new file mode 100644
index 0000000000..4bfdd3c6a7
--- /dev/null
+++ b/types/intl-tel-input/test/module-tests.ts
@@ -0,0 +1,24 @@
+import intlTelInput = require('intl-tel-input');
+
+function test_import() {
+    // $ExpectType (node: Element, options?: Options) => Plugin
+    intlTelInput;
+}
+
+function test_IntlTelInput_not_visible() {
+    // $ExpectError
+    const options: IntlTelInput.Options = {
+        allowDropdown: true
+    };
+}
+
+function test_intlTelInputUtils_global() {
+    const input = document.querySelector('#phone');
+    const iti = intlTelInput(input, {
+        utilsScript: 'node_modules/intl-tel-input/build/js/utils.js'
+    });
+
+    iti.promise.then(() => {
+        console.log(intlTelInputUtils.numberFormat.E164);
+    });
+}
diff --git a/types/intl-tel-input/tsconfig.json b/types/intl-tel-input/tsconfig.json
index e067880440..302c298ef8 100644
--- a/types/intl-tel-input/tsconfig.json
+++ b/types/intl-tel-input/tsconfig.json
@@ -19,6 +19,7 @@
     },
     "files": [
         "index.d.ts",
-        "intl-tel-input-tests.ts"
+        "intl-tel-input-tests.ts",
+        "test/module-tests.ts"
     ]
 }