Apollo is the Olympus Interaction Manager, available since Olympus 2.0.
Apollo monitors the timing of conversational events (such as the start and end times of utterances and system outputs). Using state information from the dialog manager (Ravenclaw) Apollo will dynamically adjust parameters such as the time-out used to determine whether the speaker has finished their turn. Given sufficient training data, Apollo can use empirically computed expectations to set time-out durations.
Refer to Configuring Apollo for settable parameters.