PagingGroup immediately drops out

I installed the add-on paging/intercom
*80 + extension works and I can page one phone directly.
I created a paging group, eg: 123 and when I call that number
all the phones beep, and the call immeditately drops!

I tried creating a custom extension which does Page(SIP/163),
but this however also fails!

I tried this with Snom/Xlite/Aastra
Running the latest version of asterisk: with latest freepbx 2.8

Please help!

I found out what the problem was!!

It turns out you actually NEED the dahdi service started even when
you are not using any SIP hardware INSIDE your machine!

Just service dahdi start fixed the problem!

Now to find where to enable this service forever!