No token was the right ne

app/Main.php

@@ -81,7 +81,7 @@ class Main extends Controller {
             // to load the callee and retrieve its number.
             $contact = Api::get_contact($args['id']);
             $f3->set('contact', $contact);
-            $data = array('api' => JWT_KEY,
+            $data = array('api' => JWT_TOKEN,
                 'caller' => $f3->get('POST.phone'),
                 'callee' => $contact['phone'],
                 'token' => $token);