IVRs will also log call detail information into its own database for auditing, performance report, and future IVR system enhancements. CTI allows a contact center or organization to gather information about the caller as a means of directing the inquiry to the appropriate agent. CTI can transfer relevant information about the individual customer and the IVR dialog from the IVR to the agent desktop using a screen-pop, making for a more effective and efficient service. Voice-activated dialing (VAD) IVR systems are used to automate routine inquiries to a switchboard or PABX (Private Automatic Branch exchange) operators, and are used in many hospitals and large businesses to reduce the caller waiting time. An additional function is the ability to allow external callers to page staff and transfer the inbound call to the paged person. IVR can be used to provide a more sophisticated voice mail experience to the caller.