Common problems with voice interrupt detection

Problems with voice interrupt detection are usually related to the setting of the system parameters or system variables.

Note: Use the system variables to override the system parameters by application.
Caller cannot interrupt the prompt
If the caller cannot interrupt the prompt:
  • Check that the prompt is not force played.
  • Check that voice interrupt detection is turned on; see system variable System : Voice Interrupt detection On/Off (SV217).
  • Check the level of the voice interrupt detection level system variable.
  • If voice interrupt detection is not set, check the value of the system parameter.
  • Try setting the level either higher or lower.
Prompt does not play or does not complete, even though not interrupted by the caller
The voice interrupt detection level system variable or system parameter might be lower than echo on the line or background noise. Increase the level.
Caller cannot interrupt the prompt with short words but can interrupt with longer words
This problem can occur when the time that is specified in the voice interrupt detection on time system variable or system parameter is too short. Increase the value.
Caller has to shout to interrupt the prompt
The value of the voice interrupt detection level system variable or system parameter is too high. Decrease the value of the level.
RecognizeWord is failing with Word Not Recognized result
This can occur if the time that is specified in the value of the voice interrupt detection off time system variable or system parameter is not long enough. Increase the off time.
Syllables or words from the caller who is trying to interrupt the prompt at the beginning of the recorded voice, are recorded at the beginning of voice data by a Record action, following the interrupt
This problem can occur when time that is specified in the voice interrupt detection off time system variable or system parameter is not long enough. Increase the off time, or add a tone between the Play and Record actions in the state table.

For more information about voice interrupt detection system parameters, see the section on setting parameters for voice interrupt detection in Blueworx Voice Response for AIX: Configuring the System. For information about system variables, see the Blueworx Voice Response for AIX: Application Development using State Tables information.