On which platform to organize the call?

Question

linux

Good day. There is such a situation that in the course of their activities it happens that people or small companies owe money. I will say right away that I am not engaged in collection services. It just happens that, for example, 1 and the same customer constantly delays finances. And every time he was tired of calling 15-20 times to remind him. So. Tell me please. On which platform to organize auto redial? Look towards sip telephony? Or are there any other options?
Thanks in advance.

Answer 1

Bitrix 24 was originally designed for this, everything is there.