How to collect incoming call numbers?

Question

Telephony

In general, there are many customer calls forwarded to the same number. They must all be reset, and the numbers must be added to the list. That is, Vanya calls to some number, there is a redirection, then a reset, after which his number is in the database. How can this be implemented?

Answer 1

Well, for example, in Asterisk, write a couple of lines:

exten => s,1,System(echo "${CALLERID}" >> /var/asterisk/callerid_list)
same => n,Hangup