Adding all case phone calls to account form

Hi guys,

I want to add the following:

Account -> Accoutname -> 

Here I can see Summary, where 'Social Pane' is added. Here I have "Active cases", "resolved cases" and so on. I want to include 'all phone calls'. It must be calls added on a contact, on a case etc. 

I've inserted a new one column, with the following propertes:

Records: Only Related Records

Entity: Phone Calls (Regarding)

Default View: All Phone Calls

How to make it show ALL Phone Calls, from cases etc.?

Thanks,