1. Create sip_c field in module users in studio;
2. Add custom logic hook to /custom/modules/logic_hooks.php($hook_array['after_ui_frame'][] = Array(1, 'Load Websocket For Asterisk', 'custom/modules/Nami/SocketHook.php', 'SocketHook', 'load_ws');)
3. Add directory Nami to /custom/modules/
4. Edit credential configs in SocketListener.js
5. Add custom entry point (
$entry_point_registry['add_new_call'] = array(
    'file' => 'custom/add_new_call.php',
    'auth' => false
);)