Your call history is located in the center of the calls experience and shows a list of past calls (including missed calls).
Go to Calls 
> History. From any call in the list, select More actions 
> Call back 
to begin a call automatically.
You can also chat with that contact, add them to speed dial, and add them to your contacts—all from the More actions menu.
Note:
Entries in your call history cannot be deleted.
