How to update the database of phone numbers?

Question

Telephony

There is a database of phone numbers.
How to make an automatic call from a SIM card through a usb modem / android phone, so that in the end where one beep went through, a mark was successfully set. To further filter this database.
Perhaps there are such programs?

Answer 1

Why sim card? It's long and expensive, what's the point?
Connect yourself a trunk from any telecom operator, the work will go much faster. If you need to hide your phone number - many operators "close" their eyes, by prior oral agreement, to the fact that you will substitute the "left" AON for outgoing calls.
For the "ringing" itself, goautodial is enough for you. Upload a list of phones (leads) into it, set up a calling campaign, and launch it. At the output, you will receive statuses in front of each number, such as busy, no answer, answer, number is not valid. This is at least. And then you need to understand more precisely what you need.