Has anyone seen an app that works with the Treo 600 that can dial a voicemail system and show a menu on the screen (pressable with the finger and customizable) for the common functions (delete, skip, save, etc)?

I use Tmobile's vmail, one at my office and another at my home. With 3 different voicemail menus it is hard to remember what to push to do functions for each one, so I end up having to wait to hear the menu or push something to hear more options.