{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Introduction to Public Switched Telephone Networks (PSTN), Local Loop, Switching, DSL, ATM, SS7, and AIN","author_name":"Lawrence Harte","thumbnail_url":"https://www.ebooknetworking.net/books/B00/00B/bigB0000BZ3S9.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0000BZ3S9.html\">Introduction to Public Switched Telephone Networks (PSTN), Local Loop, Switching, DSL, ATM, SS7, and AIN</a>","width":400,"height":300}