diff --git a/back/models/sip.js b/back/models/sip.js
index 62ae1eff9..f6b007314 100644
--- a/back/models/sip.js
+++ b/back/models/sip.js
@@ -1,11 +1,5 @@
 module.exports = Self => {
-    // Validations
-
     Self.validatesUniquenessOf('extension', {
         message: `The extension must be unique`
     });
-
-    Self.validatesPresenceOf('secret', {
-        message: `The secret can't be blank`
-    });
 };
diff --git a/e2e/helpers/selectors.js b/e2e/helpers/selectors.js
index c76a3d519..45b1e0398 100644
--- a/e2e/helpers/selectors.js
+++ b/e2e/helpers/selectors.js
@@ -590,7 +590,7 @@ export default {
         confirmButton: 'vn-route-tickets > vn-confirm button[response="ACCEPT"]'
     },
     workerPbx: {
-        extensionInput: 'vn-worker-pbx vn-input-number[model="$ctrl.worker.sip.extension"] input',
+        extensionInput: 'vn-worker-pbx vn-textfield[model="$ctrl.worker.sip.extension"] input',
         saveButton: 'vn-worker-pbx vn-submit[label="Save"] input'
     },
     workerTimeControl: {