Menu While Waiting in Queue

[tony_c]

I am trying to create a flow where while the caller is on hold in queue they can be presented with an IVR Menu that allows them to press 1 to leave a voicemail.  The flow would be that the caller goes into queue because no agents are available, after 30 seconds the IVR menu is presented.  If no selection is made, the caller goes back on hold and then at 60 seconds the IVR menu is presented again (with different message).  This process loops until the call is answered or the caller eventually opts to leave a voicemail.  Any suggestions?