Multiphone forwarding from multiple numbers to the main number?

Question

Asterisk

Hello!
I already found similar questions here but I do not fully understand what and how.
Multiphone SIP number forwarding?
Where to buy virtual numbers for a real estate agency?
What do you need?
You need to register many accounts on Avito to different numbers, so that later from these numbers there will be a redirect to the main number.
What is?

1. Cloud PBX based on FreePBX
   
2. SIM card with connected multiphone tariff
   
3. 50 sim cards from megafon
   

Question?
Do I understand correctly? Do FreePBX add numbers of 50 SIM cards and set up forwarding to the main number with a multiphone? Or is there some other scheme at work?

Answer 1

You understand correctly.

Answer 2

There is one, perhaps, someone important and necessary moment.
With this or a similar scheme , you will not know which number (out of several dozen) the client called, you will only see the number of the one who called you.
You can make it so that information about the number that was actually called is "displayed" on your side and stored in the PBX CDR report. And already according to these data, you can get a report on each of your "virtual" numbers: when, how many, from which regions, how many repeated calls were made, daily load, etc. For some, this is a very useful statistic. We have already done this.