How to set EEC in EM12G

Hello.
I am using an EM12G module to call a phone number and record what the person is saying on the phone. I would like to change the QEEC values, but I can’t find a guide. Can someone help, please?

Thanks
M.

Hi, the following is the QEEC parameter description

Thank you. I see that the parameter can have values from 0 to 50. Could you please tell me what do the numbers refer to?

Thank you
M.