diff --git a/core/modules/field/lib/Drupal/field/Tests/FieldHelpTest.php b/core/modules/field/lib/Drupal/field/Tests/FieldHelpTest.php
index ea172eb..4ea5979 100644
--- a/core/modules/field/lib/Drupal/field/Tests/FieldHelpTest.php
+++ b/core/modules/field/lib/Drupal/field/Tests/FieldHelpTest.php
@@ -54,16 +54,16 @@ public function testFieldHelp() {
     // Visit the Help page and make sure no warnings or notices are thrown.
     $this->drupalGet('admin/help/field');
 
-    // Enable the Options, Telephone and E-mail modules.
-    \Drupal::moduleHandler()->install(array('options', 'telephone', 'email'));
+    // Enable the Options, E-mail and Field API Test modules.
+    \Drupal::moduleHandler()->install(array('options', 'email', 'field_test'));
     \Drupal::service('plugin.manager.field.widget')->clearCachedDefinitions();
     \Drupal::service('plugin.manager.entity.field.field_type')->clearCachedDefinitions();
 
     $this->drupalGet('admin/help/field');
     $this->assertLink('Options', 0, 'Options module is listed on the Field help page.');
     $this->assertLink('E-mail', 0, 'E-mail module is listed on the Field help page.');
-    $this->assertText('Telephone', 'Modules with field types that do not implement hook_help are listed.');
-    $this->assertNoLink('Telephone', 'Modules with field types that do not implement hook_help are not linked.');
+    $this->assertText('Field API Test', 'Modules with field types that do not implement hook_help are listed.');
+    $this->assertNoLink('Field API Test', 'Modules with field types that do not implement hook_help are not linked.');
     $this->assertNoLink('Link', 'Modules that have not been installed, are not listed.');
   }
 }
diff --git a/core/modules/telephone/telephone.module b/core/modules/telephone/telephone.module
index 2d2bd35..23099a9 100644
--- a/core/modules/telephone/telephone.module
+++ b/core/modules/telephone/telephone.module
@@ -6,6 +6,26 @@
  */
 
 /**
+ * Implements hook_help().
+ */
+function telephone_help($path, $arg) {
+  switch ($path) {
+    case 'admin/help#telephone':
+      $output = '';
+      $output .= '<h3>' . t('About') . '</h3>';
+      $output .= '<p>' . t('The Telephone module allows you to create fields that contain telephone numbers. See the <a href="!field">Field module help</a> and the <a href="!field_ui">Field UI help</a> pages for general information on fields and how to create and manage them. For more information, see the <a href="!telephone_documentation">online documentation for the Telephone module</a>.', array('!field' => \Drupal::url('help.page', array('name' => 'field')), '!field_ui' => \Drupal::url('help.page', array('name' => 'field_ui')), '!telephone_documentation' => 'https://drupal.org/documentation/modules/telephone')) . '</p>';
+      $output .= '<h3>' . t('Uses') . '</h3>';
+      $output .= '<dl>';
+      $output .= '<dt>' . t('Managing and displaying telephone fields') . '</dt>';
+      $output .= '<dd>' . t('The <em>settings</em> and the <em>display</em> of the telephone field can be configured separately. See the <a href="!field_ui">Field UI help</a> for more information on how to manage fields and their display.', array('!field_ui' => \Drupal::url('help.page', array('name' => 'field_ui')))) . '</dd>';
+      $output .= '<dt>' . t('Displaying telephone numbers as links') . '</dt>';
+      $output .= '<dd>' . t('Telephone numbers can be displayed as links with the scheme name <em>tel:</em> by choosing the <em>Telephone</em> display format on the <em>Manage display</em> page. Any spaces will be stripped out of the link text.') . '</dd>';
+      $output .= '</dl>';
+      return $output;
+  }
+}
+
+/**
  * Implements hook_field_info_alter().
  */
 function telephone_field_info_alter(&$info) {