Tanks Mr. Hessler.
The device is a standard telephone, without any specific connection ports. Bell Canada answer and store the message leave by the caller. I call my message box and listen to the message that I can repeat, save or delete.
If I play the message and record it with the mac's mic we lose the quality and this is no good to present in court.
So I need a program to connect to my phone and record the message. Before it was possible because there was a phone connector on every Mac and we were able to record the conversation via the mac. Now it's no more possible I think.
I appreciate your answer even if this not solve my problem directly.
If you know another way to do that, it will be very appreciate.