{"product_id":"9781847193735","title":"Building Telephony Systems with OpenSER","description":"\u003cp\u003eThis book is a well illustrated, step-by-step guide to building a SIP based network using OpenSER. This book is for readers who want to understand how to build a SIP provider from scratch using OpenSER. Telephony and Linux experience will be helpful but is not essential. Readers need not have prior knowledge of OpenSER.\u003c\/p\u003e","brand":"Packt Publishing Limited","offers":[{"title":"Default Title","offer_id":48766873633003,"sku":"00000_00000_00000_00000","price":93.37,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/4484\/5803\/files\/9781847193735-1.jpg?v=1781708263","url":"https:\/\/kinokuniya.com.sg\/products\/9781847193735","provider":"Books Kinokuniya Singapore","version":"1.0","type":"link"}