{"product_id":"pbx-systems-for-ip-telephony-9780071375689","title":"PBX Systems for IP Telephony","description":"\u003cp\u003e • Author(s): Allan Sulkin\u003cbr\u003e • Publisher: McGraw-Hill Companies\u003cbr\u003e • Publisher Imprint: McGraw-Hill Companies\u003cbr\u003e • BISAC: Networking - Network Protocols\u003c\/p\u003e\u003cp\u003eThis work explains telephone switching systems and how the technology is evolving to accommodate voice-over-IP traffic. Unlike data networks, telephone networks are proprietary. They're purchased as complete systems and are hard if not impossible to modify. Allan Sulkin explains how to acquire, deploy and maintain a system with all the features needed to support essential new applications, and how to get optimal performance from the system you have.\u003c\/p\u003e","brand":"McGraw-Hill Companies","offers":[{"title":"Paperback","offer_id":47614245503127,"sku":"9780071375689","price":7017.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3471\/1191\/files\/9780071375689.webp?v=1775092132","url":"https:\/\/atlanticbooks.com\/products\/pbx-systems-for-ip-telephony-9780071375689","provider":"Atlantic Books","version":"1.0","type":"link"}