Virtual number in your home region?

Question

Telephony

I will describe what I want.
Let's say I have a SIM card from MTS with unlimited within the network and a sufficient amount of Internet traffic. And there is a need to get unlimited calls to the networks of other operators (Bi and MF, for example). At the moment, 3 SIM cards are used, each for its own network (phones with 3sim).
Is there a service for providing a virtual number of the operator I need in my home region, which will be charged in the same way as a regular physical SIM card? For example, they will give me a login + password from their service that implements this, they will tell me through what software from a phone / tablet / PC can I connect and use it?

Answer 1

as an example: addpac.su/product/1/1/2

Answer 2

At a megaphone, this service is called a multiphone. Of course they will give you a sim. but you can call from the client's sip.

Answer 3

Try freeje.com