A:Answer Hi Gary,
There's no permanent way of turning off the fax part of the machine. But once you set it to it's TAM / FAX mode what would happen is that the primary function would be the answering machine and the fax part is just a second function.
All callers will hear the answering machine first and if they didn't respond the fax would kick in. And if a person is sending you a fax the unit will automatically turn on the fax part.
Hope this helps,