media recorder

Hello,

I can't record calls (incoming and outgoing). Let me explain.

For that I use a task with the action "Record sound", found in the tab "media".
I have specified the destination path (correct path), and the name of the file that will be created.
I put a maximum size of 300.
Format: AMR Narrowband and the same for the codec.

When I receive a call and answer (task triggering), an error message appears: "Failure to initialize the recorder")...

However, the action works if I change the source and put "Microphone".

How can i solve this problem ?

Thank you in advance.