Force display-update on a snom-phone?

Is it possible to force an update to a phone’s display in an idle state ?

The phones we have are snom-phones, and I would like to know if it’s possible to create a script / macro that can update the display at such a phone, without having to call them… This can be all kind of info, that contains some info for the user (eg info on who is calling someone else in the pickup-group, see my other post), but can driven by a normal script as well…