The 3CX Voice Application Designer can, among other things, play pre-recorded audio messages. This component configuration seems simple, but it requires special care when playing the last message of an application, otherwise the caller will not hear it.
The Allow Barge-In Property
The “Prompt Playback” component allows defining the property “Allow Barge-In”, which has a default value of “True”. This property indicates whether the message can be interrupted by a DTMF digit in a subsequent menu. With the 3CX IVR implementation, when the value of this property is “True”, the message needs to wait for DTMF digits. Only then is the message played to the user, before the messages of the “Menu” or “User Input” component.