Charlie123
Newbie level 3
Hello everybody,
Let me show you all what I want to do:
Let say, I have 10 employees calling ONE office phone line.
But I want two of them with the phone number ; 457 297-1344 and 450 297-1450 to activate automatiquely a device once calling (don't want PBX involved).
My concern is how can I make these two phone numbers to be authenticate.
So I tought, If I use a MT8841(caller id) and use a comparator to compare the coming call phone number to the number stored (in this case 4572971344 and 4502971450) this should work. Am'I right?
How do you see that setup. Is one PIC can do all the work ??? Should I use a PIC (in this case wish one)? EEPROM....and comparator???? What is your best guess? tks/Charlie
Let me show you all what I want to do:
Let say, I have 10 employees calling ONE office phone line.
But I want two of them with the phone number ; 457 297-1344 and 450 297-1450 to activate automatiquely a device once calling (don't want PBX involved).
My concern is how can I make these two phone numbers to be authenticate.
So I tought, If I use a MT8841(caller id) and use a comparator to compare the coming call phone number to the number stored (in this case 4572971344 and 4502971450) this should work. Am'I right?
How do you see that setup. Is one PIC can do all the work ??? Should I use a PIC (in this case wish one)? EEPROM....and comparator???? What is your best guess? tks/Charlie