Reference

The Reference field is a free-form text field that can contain whatever text you want.  Its purpose is to make the text available for future messages.  When you enter text in this field, PhonePad will remember it so that the next time you create an incoming or outgoing phone message you can select the text from the drop-down list.  

The text in the drop-down list is available for all users to access.

Possible uses for this field are: patient numbers, client numbers, file numbers and so on.