We are running asterisk with 8 port FXO. FXO connects to our old PBX (Samsung Office Serv 100).

Now we want to record all calls routed through FXO (if it was dialed to outside or comming from outside).

Here is the diagram

           |------|---------------------------------
           |      |--------------24 Lines ---------- Other clasic Phones
PRI------  | PBX  |---------------------------------
           |      |
           |      |
           |      |-----------|---------|
           |      |--8 lines--|         |---------         
           |      |-----------|Asterisk |---------- 50 SIP phone
           |------|           |         |----------
                              |---------|----------

Is there a simple way to do this?