1. HSIP E911 Public Safety Answering Point (PSAP).https://catalog.data.gov/dataset/hsip‐e911‐public‐safety‐answering‐point‐psap. Accessed July 25 2020.
2. Definition of Public Safety Answering Point.https://www.lawinsider.com/dictionary/public‐safety‐answering. Accessed July 15 2020.
3. Telephone Terminology: What Does It All Mean?https://www.firehouse.com/tech‐comm/article/10501207/telephone‐terminology‐what‐does‐it‐all‐mean. Accessed July 29 2020.
4. NG911 Guide for Leaders in EMS.https://www.911.gov/project_ng911publicsafety/ems/digital‐edition.html. Accessed July 15 2020.