Call recording for internal user no

How can I set the call recording for an internal calls, like user A no.1001 call user B no.1002? Now I think it need to set call recording at each user. Is there any way easier than this?

Actually I want to record all calls in the system.
Thanks.

You need to manually set each extension to ‘force’, in record calls.

In users, I found many recording options such as Inbound External Calls, Outbound External Calls.

Will it duplicate with the one I setup on inbound/outbound route?

Thx