nEnd-users (individuals and companies)
 nInformation
 service providers (As a telephone catalog services designed by a company, giving telephone numbers
 when you give a name or an address)
 nService
 brokers sell dedicated
 service packages (as MySAP)
 nNetwork operators (as Elisa, Telia, or Radiolinja)
 nContent
 providers (as Paramount
 Pictures)
 n