If you think the idea of remote monitoring of photocopiers and other office equipment is new, check out U S Patent number 5,822,221. The part about using a DTMF to ASCII converter for communications over a telephone line is really old school.
If you think the idea of remote monitoring of photocopiers and other office equipment is new, check out U S Patent number 5,822,221. The part about using a DTMF to ASCII converter for communications over a telephone line is really old school.