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(b) Consider the following pseudocode which represents the functional steps of a program to control a phone that can be only used to dial but not to receive calls. Repeat Forever Wait for a new Event Switch (state) case Idle: if (Event == Pickup) state - Dialling case Dialling: if (Event == ReceiveRingtone) state - RemoteEndRinging if (Event == HangUp) state - Idle case RemoteEndRinging: if (Event -- RemoteEndAnswers) state = Connected if (Event -- HangUp) state - Idle case Connected: if (Event == HangUp) state = Idle } /*end switch/ } /*end repeat*/ You are required to draw a State Transition Diagram to represent the pseudocode above