mahshid_elec
New Member
Dear All,
I am a student who need to complete a project called Telephone
Facilities for my undergraduate degree. I must use atmega8l and otheres
IC but it did not work.
my project should have this function:
In case of the person has two or three phone numbers, it could save
it to memory. Then you want to make a call to this person. AVR will call
the first number then second number if the first number is busy. It will
make calls from 1st number to 3rd numbers unitl it make connections
with BEEP sound or make it cancel.
I can use mt8880 for my project but I don't know how can I connect it to telephone line & how can I detect tones.
please help me to make my project.
thanks a lot.
I am a student who need to complete a project called Telephone
Facilities for my undergraduate degree. I must use atmega8l and otheres
IC but it did not work.
my project should have this function:
In case of the person has two or three phone numbers, it could save
it to memory. Then you want to make a call to this person. AVR will call
the first number then second number if the first number is busy. It will
make calls from 1st number to 3rd numbers unitl it make connections
with BEEP sound or make it cancel.
I can use mt8880 for my project but I don't know how can I connect it to telephone line & how can I detect tones.
please help me to make my project.
thanks a lot.