Inbound calls cost

How do I get incoming calls that cost per minute, check if the account has a balance for it, and if the balance is 0, the call is declined?

For inbound call, system wouldn’t check balance as we alway wants to have Free incoming calls.

Exactly, but there are Toll-Free DIDs, how to do in this case, because even without a balance the customer could continue using the service

could anyone help with this?

This requires custom development in call scripts. Either you can raise it on as suggestion and team will look at that, or you can contact to our sales team to help you out with it.