In Freeje both incoming and outgoing calls are available. All the call rates depend on: call direction, virtual number type and call forwarding direction.
Rates for inbound calls depend on calls forwarding direction. If you setup forwarding to your freeje app inbound calls likely will be free. If forwarding is set to a phone number, the cost will depend on the country of the number that receives the call.
With a per-second charge, the funds are charged for each second, whereas with per-minute charging, the funds are charged from the first second of each new minute.