diff --git a/composer.json b/composer.json
index 2223f65c0..c96738df8 100644
--- a/composer.json
+++ b/composer.json
@@ -22,6 +22,7 @@
         "league/csv": "^9.7.1",
         "nyholm/psr7": "^1.4",
         "ocramius/package-versions": "^1.10",
+        "odolbeau/phone-number-bundle": "^3.6",
         "phpoffice/phpspreadsheet": "^1.16",
         "ramsey/uuid-doctrine": "^1.7",
         "sensio/framework-extra-bundle": "^5.5",
diff --git a/src/Bundle/ChillMainBundle/Phonenumber/PhoneNumberHelperInterface.php b/src/Bundle/ChillMainBundle/Phonenumber/PhoneNumberHelperInterface.php
new file mode 100644
index 000000000..38aef39ac
--- /dev/null
+++ b/src/Bundle/ChillMainBundle/Phonenumber/PhoneNumberHelperInterface.php
@@ -0,0 +1,56 @@
+<?php
+
+/**
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Chill\MainBundle\Phonenumber;
+
+/**
+ * Helper to some task linked to phonenumber.
+ *
+ * Currently, only Twilio is supported (https://www.twilio.com/lookup). A method
+ * allow to check if the helper is configured for validation. This should be used
+ * before doing some validation.
+ */
+interface PhoneNumberHelperInterface
+{
+    public function denormalize(string $phoneNumber): string;
+
+    public function format(string $phonenumber): string;
+
+    /**
+     * Get type (mobile, landline, ...) for phone number.
+     */
+    public function getType(string $phonenumber): string;
+
+    /**
+     * Return true if the validation is configured and available.
+     */
+    public function isPhonenumberValidationConfigured(): bool;
+
+    /**
+     * Return true if the phonenumber is a landline or voip phone.  Return always true
+     * if the validation is not configured.
+     */
+    public function isValidPhonenumberAny(string $phonenumber): bool;
+
+    /**
+     * Return true if the phonenumber is a landline or voip phone.  Return always true
+     * if the validation is not configured.
+     */
+    public function isValidPhonenumberLandOrVoip(string $phonenumber): bool;
+
+    /**
+     * REturn true if the phoennumber is a mobile phone. Return always true
+     * if the validation is not configured.
+     */
+    public function isValidPhonenumberMobile(string $phonenumber): bool;
+
+    public function normalize(string $phoneNumber): string;
+}
diff --git a/src/Bundle/ChillMainBundle/Phonenumber/PhonenumberHelper.php b/src/Bundle/ChillMainBundle/Phonenumber/PhonenumberHelper.php
index 0eae018a8..781f3ec06 100644
--- a/src/Bundle/ChillMainBundle/Phonenumber/PhonenumberHelper.php
+++ b/src/Bundle/ChillMainBundle/Phonenumber/PhonenumberHelper.php
@@ -15,8 +15,12 @@ use GuzzleHttp\Client;
 use GuzzleHttp\Exception\ClientException;
 use GuzzleHttp\Exception\ConnectException;
 use GuzzleHttp\Exception\ServerException;
+use libphonenumber\PhoneNumber;
+use libphonenumber\PhoneNumberFormat;
+use libphonenumber\PhoneNumberUtil;
 use Psr\Cache\CacheItemPoolInterface;
 use Psr\Log\LoggerInterface;
+use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
 
 use function array_key_exists;
 use function in_array;
@@ -24,40 +28,30 @@ use function json_decode;
 use function preg_replace;
 use function strlen;
 
-/**
- * Helper to some task linked to phonenumber.
- *
- * Currently, only Twilio is supported (https://www.twilio.com/lookup). A method
- * allow to check if the helper is configured for validation. This should be used
- * before doing some validation.
- */
-class PhonenumberHelper
+final class PhonenumberHelper implements PhoneNumberHelperInterface
 {
     public const FORMAT_URI = 'https://lookups.twilio.com/v1/PhoneNumbers/%s';
 
     public const LOOKUP_URI = 'https://lookups.twilio.com/v1/PhoneNumbers/%s';
 
-    protected CacheItemPoolInterface $cachePool;
+    private CacheItemPoolInterface $cachePool;
 
-    /**
-     * TRUE if the client is properly configured.
-     */
-    protected bool $isConfigured = false;
+    private array $config;
 
-    protected LoggerInterface $logger;
+    private bool $isConfigured = false;
 
-    /**
-     * Twilio client.
-     */
-    protected Client $twilioClient;
+    private LoggerInterface $logger;
+
+    private Client $twilioClient;
 
     public function __construct(
-        CacheItemPoolInterface $cachePool,
-        $config,
+        CacheItemPoolInterface $cacheUserData,
+        ParameterBagInterface $parameterBag,
         LoggerInterface $logger
     ) {
         $this->logger = $logger;
-        $this->cachePool = $cachePool;
+        $this->cachePool = $cacheUserData;
+        $this->config = $config = $parameterBag->get('chill_main.phone_helper');
 
         if (
             array_key_exists('twilio_sid', $config)
@@ -74,9 +68,17 @@ class PhonenumberHelper
         }
     }
 
-    public function format($phonenumber)
+    public function denormalize(string $phoneNumber): string
     {
-        return $this->performTwilioFormat($phonenumber);
+        $phoneUtil = PhoneNumberUtil::getInstance();
+        $phoneNumber = $phoneUtil->parse($phoneNumber);
+
+        return $phoneUtil->format($phoneNumber, PhoneNumberFormat::NATIONAL);
+    }
+
+    public function format(string $phonenumber): string
+    {
+        return $this->normalize($phonenumber);
     }
 
     /**
@@ -157,7 +159,15 @@ class PhonenumberHelper
         return 'mobile' === $validation;
     }
 
-    protected function performTwilioFormat($phonenumber)
+    public function normalize(string $phoneNumber): string
+    {
+        $phoneUtil = PhoneNumberUtil::getInstance();
+        $phoneNumber = $phoneUtil->parse($phoneNumber, $this->config['default_carrier_code']);
+
+        return $phoneUtil->formatNationalNumberWithPreferredCarrierCode($phoneNumber, $this->config['default_carrier_code']);
+    }
+
+    private function performTwilioFormat($phonenumber)
     {
         if (false === $this->isPhonenumberValidationConfigured()) {
             return $phonenumber;
@@ -218,7 +228,7 @@ class PhonenumberHelper
         return $format;
     }
 
-    protected function performTwilioLookup($phonenumber)
+    private function performTwilioLookup($phonenumber)
     {
         if (false === $this->isPhonenumberValidationConfigured()) {
             return null;
diff --git a/src/Bundle/ChillMainBundle/Phonenumber/Templating.php b/src/Bundle/ChillMainBundle/Phonenumber/Templating.php
index 414732263..6aa0ad88e 100644
--- a/src/Bundle/ChillMainBundle/Phonenumber/Templating.php
+++ b/src/Bundle/ChillMainBundle/Phonenumber/Templating.php
@@ -14,19 +14,16 @@ namespace Chill\MainBundle\Phonenumber;
 use Twig\Extension\AbstractExtension;
 use Twig\TwigFilter;
 
-class Templating extends AbstractExtension
+final class Templating extends AbstractExtension
 {
-    /**
-     * @var PhonenumberHelper
-     */
-    protected $phonenumberHelper;
+    protected PhoneNumberHelperInterface $phonenumberHelper;
 
-    public function __construct(PhonenumberHelper $phonenumberHelper)
+    public function __construct(PhoneNumberHelperInterface $phonenumberHelper)
     {
         $this->phonenumberHelper = $phonenumberHelper;
     }
 
-    public function formatPhonenumber($phonenumber)
+    public function formatPhonenumber(string $phonenumber): string
     {
         return $this->phonenumberHelper->format($phonenumber) ?? $phonenumber;
     }
diff --git a/src/Bundle/ChillMainBundle/Validation/Validator/ValidPhonenumber.php b/src/Bundle/ChillMainBundle/Validation/Validator/ValidPhonenumber.php
index 5f2a5bf14..6bccff1f2 100644
--- a/src/Bundle/ChillMainBundle/Validation/Validator/ValidPhonenumber.php
+++ b/src/Bundle/ChillMainBundle/Validation/Validator/ValidPhonenumber.php
@@ -11,24 +11,21 @@ declare(strict_types=1);
 
 namespace Chill\MainBundle\Validation\Validator;
 
-use Chill\MainBundle\Phonenumber\PhonenumberHelper;
+use Chill\MainBundle\Phonenumber\PhoneNumberHelperInterface;
 use LogicException;
 use Psr\Log\LoggerInterface;
 use Symfony\Component\Validator\Constraint;
 use Symfony\Component\Validator\ConstraintValidator;
 
-class ValidPhonenumber extends ConstraintValidator
+final class ValidPhonenumber extends ConstraintValidator
 {
-    protected $logger;
+    private LoggerInterface $logger;
 
-    /**
-     * @var PhonenumberHelper
-     */
-    protected $phonenumberHelper;
+    private PhoneNumberHelperInterface $phonenumberHelper;
 
     public function __construct(
         LoggerInterface $logger,
-        PhonenumberHelper $phonenumberHelper
+        PhoneNumberHelperInterface $phonenumberHelper
     ) {
         $this->phonenumberHelper = $phonenumberHelper;
         $this->logger = $logger;
diff --git a/src/Bundle/ChillMainBundle/config/services/phonenumber.yaml b/src/Bundle/ChillMainBundle/config/services/phonenumber.yaml
index 46fa853ee..905c08a81 100644
--- a/src/Bundle/ChillMainBundle/config/services/phonenumber.yaml
+++ b/src/Bundle/ChillMainBundle/config/services/phonenumber.yaml
@@ -3,19 +3,12 @@ services:
         autowire: true
         autoconfigure: true
 
-    Chill\MainBundle\Phonenumber\PhonenumberHelper:
-        arguments:
-            $config: '%chill_main.phone_helper%'
-            $cachePool: '@cache.user_data'
+    Chill\MainBundle\Phonenumber\PhonenumberHelper: ~
 
     Chill\MainBundle\Phonenumber\Templating:
-        arguments:
-            $phonenumberHelper: '@Chill\MainBundle\Phonenumber\PhonenumberHelper'
         tags:
             - { name: twig.extension }
 
     Chill\MainBundle\Validation\Validator\ValidPhonenumber:
-        arguments:
-            $phonenumberHelper: '@Chill\MainBundle\Phonenumber\PhonenumberHelper'
         tags:
             - { name: validator.constraint_validator }
diff --git a/src/Bundle/ChillPersonBundle/Serializer/Normalizer/PersonJsonNormalizer.php b/src/Bundle/ChillPersonBundle/Serializer/Normalizer/PersonJsonNormalizer.php
index 451171cb6..5f2ab0563 100644
--- a/src/Bundle/ChillPersonBundle/Serializer/Normalizer/PersonJsonNormalizer.php
+++ b/src/Bundle/ChillPersonBundle/Serializer/Normalizer/PersonJsonNormalizer.php
@@ -12,6 +12,7 @@ declare(strict_types=1);
 namespace Chill\PersonBundle\Serializer\Normalizer;
 
 use Chill\MainBundle\Entity\Center;
+use Chill\MainBundle\Phonenumber\PhoneNumberHelperInterface;
 use Chill\MainBundle\Security\Resolver\CenterResolverManagerInterface;
 use Chill\MainBundle\Templating\Entity\ChillEntityRenderExtension;
 use Chill\PersonBundle\Entity\Person;
@@ -41,6 +42,8 @@ class PersonJsonNormalizer implements DenormalizerAwareInterface, NormalizerAwar
 
     private CenterResolverManagerInterface $centerResolverManager;
 
+    private PhoneNumberHelperInterface $phoneNumberHelper;
+
     private ChillEntityRenderExtension $render;
 
     private PersonRepository $repository;
@@ -48,11 +51,13 @@ class PersonJsonNormalizer implements DenormalizerAwareInterface, NormalizerAwar
     public function __construct(
         ChillEntityRenderExtension $render,
         PersonRepository $repository,
-        CenterResolverManagerInterface $centerResolverManager
+        CenterResolverManagerInterface $centerResolverManager,
+        PhoneNumberHelperInterface $phoneNumberHelper
     ) {
         $this->render = $render;
         $this->repository = $repository;
         $this->centerResolverManager = $centerResolverManager;
+        $this->phoneNumberHelper = $phoneNumberHelper;
     }
 
     public function denormalize($data, $type, $format = null, array $context = [])
@@ -106,12 +111,12 @@ class PersonJsonNormalizer implements DenormalizerAwareInterface, NormalizerAwar
                     break;
 
                 case 'phonenumber':
-                    $person->setPhonenumber($data[$item]);
+                    $person->setPhonenumber($this->phoneNumberHelper->denormalize($data[$item]));
 
                     break;
 
                 case 'mobilenumber':
-                    $person->setMobilenumber($data[$item]);
+                    $person->setMobilenumber($this->phoneNumberHelper->denormalize($data[$item]));
 
                     break;
 
@@ -187,8 +192,8 @@ class PersonJsonNormalizer implements DenormalizerAwareInterface, NormalizerAwar
             'deathdate' => $this->normalizer->normalize($person->getDeathdate(), $format, $context),
             'age' => $this->normalizer->normalize($person->getAge(), $format, $context),
             'centers' => $this->normalizer->normalize($this->centerResolverManager->resolveCenters($person), $format, $context),
-            'phonenumber' => $person->getPhonenumber(),
-            'mobilenumber' => $person->getMobilenumber(),
+            'phonenumber' => $this->phoneNumberHelper->normalize($person->getPhonenumber()),
+            'mobilenumber' => $this->phoneNumberHelper->normalize($person->getMobilenumber()),
             'email' => $person->getEmail(),
             'altNames' => $this->normalizeAltNames($person->getAltNames()),
             'gender' => $person->getGender(),