1 erlang = 1 hour of traffic = 60 minutes of call.
As for me, i would be very interested if someone knows a non-recursive formula for calculating capacity from blocking probability and number of circuits. By “non-recursive”, i mean that there would be no “sum”. Only some plain formulas like logarithms or whatever. It is not easy to implement loops in database queries.
Or if it is known that it is impossible to get such a formula, thank you also to let me know.