또 다른 예 로 , 단말 은 변수 BarringFactorForMMTEL - Voice , BarringTimeForMMTEL - Voice , BarringFactorForMMTEL - Video 및 BarringTimeForMMTEL - Video 를 상위 계층 으로 전달 한다 ( forward the variables BarringFactorForMMTEL - Voice , BarringTimeForMMTEL - Voice , BarringFactorForMMTEL - Video and BarringTimeForMMTEL - Video to the upper layers ) .