To operate most effectively, a voice application needs to be able to detect, as soon as possible, when the caller, or called party, hangs up without completing the transaction. Otherwise, you might be paying for unnecessarily long calls. Some switches issue a constant tone to indicate that the far end has hung up. Other switches, particularly those using loop start protocols, issue a cadenced tone to indicate far-end hang up. Providing the Signaling Type parameters are configured correctly, Blueworx Voice Response can detect these tones, and pass the information on to the voice application so that it can end the call.