{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Introduction to SIP IP Telephony Systems: Technology Basics, Services, Economics, and Installation","author_name":"Lawrence Harte, David Bowler","thumbnail_url":"https://www.ebooknetworking.net/books/B00/014/bigB00014X1C4.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00014X1C4.html\">Introduction to SIP IP Telephony Systems: Technology Basics, Services, Economics, and Installation</a>","width":400,"height":300}