Open Source - How do I set up my Digium phone to display my Rapid Dial Contacts?

Log into you extension and navigate to Features-Phone Features.

Select the Rapid Dial Favorites tab

You can choose to add Extensions, External Contacts, and Status Indicators. 

By default, anything added as a Rapid Dial entry will use any unused line keys first, then populate the sidecar, if applicable. If the phone has a sidecar and you do not want the Rapid Dial entries populating the unused line keys, then you will need to choose the Digium Phones Option button on the Rapid Dial Favorites page and disable the setting, "Enable Line Keys for Rapid Dial".

On the Digium D80 and Switchvox Softphone application, the rapid dial entries will show up in the favorites list.