Where can I get a large number of virtual numbers with forwarding to mobile?

Question

Telephony

Good day. Advise how to be. It is required that N-number of numbers be forwarded to one phone (for example, 100 numbers to one phone).
Anyone with experience please share your advice.
The forwarding options are as follows (which I know):
1. Normal forwarding on cellular operators is expensive. Who knows cheap options tell me.
2. As an option, purchase virtual numbers with forwarding to a cell phone.
3. Asterix (requires expensive equipment, or a lot of 3g modems).

Answer 1

That is, you decided to bomb someone's phone like that?

Answer 2

no, for business. Lots of ads

Answer 3

Offtopic. In any case, buying/renting 100 rooms is not cheap.