{"product_id":"network-infrastructure-division-systems-and-national-security-agency-9781507798324","title":"Network Infrastructure Division Systems and Network Analysis Center: Activating Authentication and Encryption for Cisco Unified Communications Manager","description":"When Voice over Internet Protocol (VoIP) users are asked about security concerns related to VoIP, one of the first thoughts is how to secure the VoIP network itself. Although, applying security measures at Layer 2 through Layer 5 (switches, routers, firewalls, and Intrusion Detection Systems) are important and necessary, these steps do not fully encompass a Defense in Depth strategy. To take full advantage of Defense in Depth countermeasures, media encryption at the presentation layer (Layer 6) must also be implemented.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e National Security Agency\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1507798326\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781507798324\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Createspace Independent Publishing Platform\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 02\/14\/2015\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 32\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.22lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 11.00h x 8.50w x 0.07d","brand":"National Security Agency","offers":[{"title":"Paperback","offer_id":48623028830463,"sku":"9781507798324","price":15.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.whiterainbookhouse.com\/products\/network-infrastructure-division-systems-and-national-security-agency-9781507798324","provider":"WR Book House","version":"1.0","type":"link"}