Ring group channel?

General Help
1

Hello!
I am trying to create a .call file that automatically calls a ring group.
With extensions there’s no problem:
Channel:SIP/ext-nr works fine , however
Channel:SIP/ringgroup_nr doesn’t work.

How can you call a ring group from call file?
Please let me know!

2 
local/<ringgroup_number>@from-internal
3

Now it works! Thank you so much!