EG95 repetition of the command in echo

I have this strange repetition in a EG95 modem. When I send any command I got first the repetition of the command and then the response. For instance:
If I send ATZ
I get ATZ and OK

is it possible to not avete the repetizion of the command in the echo, I tried echo off but it delelete also the OK that I need.

Thank you

Echo on: ATE1

Echo off: ATE0

The “OK” in the response is unaffected.

These commands work on all modems made in the last 40 years or more.

A news after 40 years for you, this special modem is affected no OK after ATE0

That seems like a bug to me.