The thinking with this is that is you have signed up for a number of minutes a month from a local telco, then local and national calls are essentially free.
With that in mind, Pat has local and national numbers you can dial, which, when answered prompt you to enter the number of your final call destination.
I just used it to call an old college friend who moved to New York last year. Brilliant.
One of our neighbours is Bulgarian and she has family in Spain. She thinks this is a phenomenal idea. She can call either country for the cost of a local or national call.
Kudos to you Pat for making this possible.