The basic micropayment model where micropayments are added to a ...

[Destiiny22]

The basic micropayment model where micropayments are added to a monthly bill for existing services best describes
 
  A) subscriptions.
  B) stored value.
  C) direct payment.
  D) aggregation.

Question 2

In the telephone system, conversions are reproduced using the
   range from 300  3400 Hz in order to limit the required capacity of
   transmission lines.
 
  Indicate whether the statement is true or false

[cpetit11]

Answer to Question 1

C

Answer to Question 2

T