diff --git a/addons/phone_validation/models/__init__.py b/addons/phone_validation/models/__init__.py
index ba75abd0ddb..1402c4c2c28 100644
--- a/addons/phone_validation/models/__init__.py
+++ b/addons/phone_validation/models/__init__.py
@@ -4,3 +4,4 @@
 from . import phone_blacklist
 from . import phone_validation_mixin
 from . import mail_thread_phone
+from . import res_partner
diff --git a/addons/phone_validation/models/mail_thread_phone.py b/addons/phone_validation/models/mail_thread_phone.py
index 3e166985f8e..f13161ad447 100644
--- a/addons/phone_validation/models/mail_thread_phone.py
+++ b/addons/phone_validation/models/mail_thread_phone.py
@@ -2,6 +2,7 @@
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
 from odoo import api, fields, models, _
+from odoo.addons.phone_validation.tools import phone_validation
 from odoo.exceptions import UserError
 
 
@@ -24,7 +25,7 @@ class PhoneMixin(models.AbstractModel):
     """
     _name = 'mail.thread.phone'
     _description = 'Phone Blacklist Mixin'
-    _inherit = ['mail.thread', 'phone.validation.mixin']
+    _inherit = ['mail.thread']
 
     phone_sanitized = fields.Char(
         string='Sanitized Number', compute="_compute_phone_sanitized", compute_sudo=True, store=True,
@@ -96,6 +97,25 @@ class PhoneMixin(models.AbstractModel):
         send an SMS on a record. """
         return []
 
+    def _phone_get_country_field(self):
+        if 'country_id' in self:
+            return 'country_id'
+        return False
+
+    def phone_get_sanitized_numbers(self, number_fname='mobile', force_format='E164'):
+        res = dict.fromkeys(self.ids, False)
+        country_fname = self._phone_get_country_field()
+        for record in self:
+            number = record[number_fname]
+            res[record.id] = phone_validation.phone_sanitize_numbers_w_record([number], record, record_country_fname=country_fname, force_format=force_format)[number]['sanitized']
+        return res
+
+    def phone_get_sanitized_number(self, number_fname='mobile', force_format='E164'):
+        self.ensure_one()
+        country_fname = self._phone_get_country_field()
+        number = self[number_fname]
+        return phone_validation.phone_sanitize_numbers_w_record([number], self, record_country_fname=country_fname, force_format=force_format)[number]['sanitized']
+
     def _phone_set_blacklisted(self):
         return self.env['phone.blacklist'].sudo()._add([r.phone_sanitized for r in self])
 
diff --git a/addons/phone_validation/models/phone_validation_mixin.py b/addons/phone_validation/models/phone_validation_mixin.py
index 10eccb9b307..a430a537c21 100644
--- a/addons/phone_validation/models/phone_validation_mixin.py
+++ b/addons/phone_validation/models/phone_validation_mixin.py
@@ -9,11 +9,6 @@ class PhoneValidationMixin(models.AbstractModel):
     _name = 'phone.validation.mixin'
     _description = 'Phone Validation Mixin'
 
-    def _phone_get_country_field(self):
-        if 'country_id' in self:
-            return 'country_id'
-        return False
-
     def _phone_get_country(self):
         if 'country_id' in self and self.country_id:
             return self.country_id
@@ -30,17 +25,3 @@ class PhoneValidationMixin(models.AbstractModel):
             force_format='INTERNATIONAL',
             raise_exception=False
         )
-
-    def phone_get_sanitized_numbers(self, number_fname='mobile', force_format='E164'):
-        res = dict.fromkeys(self.ids, False)
-        country_fname = self._phone_get_country_field()
-        for record in self:
-            number = record[number_fname]
-            res[record.id] = phone_validation.phone_sanitize_numbers_w_record([number], record, record_country_fname=country_fname, force_format=force_format)[number]['sanitized']
-        return res
-
-    def phone_get_sanitized_number(self, number_fname='mobile', force_format='E164'):
-        self.ensure_one()
-        country_fname = self._phone_get_country_field()
-        number = self[number_fname]
-        return phone_validation.phone_sanitize_numbers_w_record([number], self, record_country_fname=country_fname, force_format=force_format)[number]['sanitized']