Here is!! the drivers for the fake motorola 56k modem.
It is a modified ALS 300+ sound chip. I found it cuz this "modem" appears on Windows like a "Multimedia Audio Device" so, i go to my main SO Linux, and after an "lspci -v" command i found the ALS300+ name on my screen.
So, i started the search for an hybrid driver... and here is it!.
Greetings from Argentina!