If the voice application that you are debugging includes actions that use the phone line (any Play or Get actions), the state table will include an AnswerCall or MakeCall action.
To initiate a call, the debugger changes an AnswerCall state to a MakeCall state. Step 7 of Loading system variables describes how to supply the call information to the debugger so that the phone will ring as if the incoming call was made. After you pick up the phone, you can continue stepping through the state table. For the MakeCall state to succeed, your system must be set up for either outgoing or bothway (both incoming and outgoing) calls. If your system is set up for incoming calls only, the debugger will not be able to complete the MakeCall state successfully and you will not be able to execute any states that require a phone line. For information about configuring your telephony environment, see the Blueworx Voice Response for AIX: Configuring the System information.