{"product_id":"9781786277091","title":"Fashion in Film","description":"\u003cp\u003ePurchase includes free access to book updates online and a free trial membership in the publisher's book club where you can select from more than a million books without charge. Chapters: Police, Security Engineering, Physical Security, Closed-Circuit Television, Counter-Terrorism, Safety Culture, Crime Prevention Through Environmental Design, Park Ranger, National Park Service Ranger, Crime Prevention, Ready Georgia, North American Safe Boating Campaign, the School Safety and Law Enforcement Improvement Act, Sky Marshal, Infrastructure Security, Vaccine Adverse Event Reporting System, Earthquake Early Warning, James F. Pastor, Bsi for Roip, Vaccine Safety Datalink, Public Safety, Preventive State, All-Call. Excerpt: An All-Call is sometimes an automated phone notification system that will quickly call individuals with a recorded message in the event of a weather-related school closing or emergency situation, for example.A hyperlinked version of this chapter is at The Nation's emergency responders typically use two-way radiosknown as land mobile radiosto communicate with each other when responding to incidents. However, even the most powerful of these radios are often not interoperable with each other when they broadcast in different frequency bands. To connect disparate radio systems, emergency responders rely on bridging solutions, which are increasingly using Voice over Internet Protocol (VoIP) technology to transmit data and voice communications. Although based on Internet Protocol (IP), VoIP technology is not always interoperable because it can be implemented in a number of different ways that are essentially proprietary. As a result, there is no guarantee that one manufacturers VoIP-based equipment will connect with anothers.VoIP Working Group The U.S. Department of Homeland Securitys Office for Interoperability and Compatibility and the U.S. Department of Commerces Public Safety Communications Research program are leading the Public Safety VoIP Working Gr...\u003c\/p\u003e","brand":"Laurence King Publishing","offers":[{"title":"Default Title","offer_id":47037755982064,"sku":"9781786277091","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781786277091_p0.jpg?v=1763729031","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781786277091","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}