public safety access points , such as 911 and e911 service providers , are often overwhelmed with information coming from a number of callers . as part of an initial assessment , a determination is often made as to whether two or more callers are calling about the same emergent event . if two or more callers are calling about the same emergent event , the callers and psap may interact at the same time but differently , such as different content or different media types . as a benefit , on - site activities may be coordinated in a manner that helps reduce the demands on psap resources and helps to facilitate a more accurate and appropriate response to the emergent event .