Price of call forwarding?

in my last question A few questions
you mentioned I’d have to pay $1.20 to have my purchased virtual number forwarded to my mobile. Is that a one off payment, monthly or per call?

The $1.20 is taken from your prepaid balance since you are forwarding your USA Flynumber to a regular UK mobile.

I came up with $1.20 with using forwarding to a UK mobile at .08 per min for 15 minutes as an example

Just to recap…

You pay 2.95 a month for the USA Flynumber and there is an additional per min chagre for sending the calls to a regualr phone number. That additional charge depends on where that “regualr phone number” is