How would you allow messages to be entered? Voice or text? How would you activate that feature? How would you play back or redisplay the messages? How would you indicate the ability to transmit this...

How would you allow messages to be entered? Voice or text? How would you activate that feature? How would you play back or redisplay the messages? How would you indicate the ability to transmit this data to the medical staff? What changes would you make to the user interface if this were a tablet app instead of a smartphone? Sketch out the screen(s) for a tablet app.