Tel is required

src/Form/ContactType.php

@@ -31,7 +31,7 @@ class ContactType extends AbstractType
                 ],
             ])
             ->add('phoneNumber', TextType::class, [
-                'required' => false,
+                'required' => true,
             ])
             ->add('mobilePhoneNumber', TextType::class, [
                 'required' => false,