fix pbx e2e

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`
-    });
 };

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: {