there is disclosed a system in which the patron &# 39 ; s own telephone , or other wireless device , is used to inform the patron that a service for which the patron is waiting has become available . once the patron &# 39 ; s wireless device becomes registered with the service provider , informational messages of interest to that patron can be provided to the patron . these informational messages can be displayed on the screen of the wireless device or can be delivered to the patron audibly . in some situations , the patron &# 39 ; s wireless device can be used for two - way communication with the service provider in order to , for example , answer a question or place an order . in one embodiment , the calling number of the patron &# 39 ; s wireless device is entered into the system electronically , for example , using rfid or nf communication .