Visi 2 Lingfen Sun izlaidumi pie Paperback Book un H... Book
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![Cover for Lingfen Sun · Guide to Voice and Video over IP: For Fixed and Mobile Networks - Computer Communications and Networks (Paperback Book) [2013 edition] (2015)](https://imusic.b-cdn.net/images/item/original/431/9781447158431.jpg?lingfen-sun-2015-guide-to-voice-and-video-over-ip-for-fixed-and-mobile-networks-computer-communications-and-networks-paperback-book&class=scaled&v=1604910114)
![Cover for Lingfen Sun · Guide to Voice and Video over IP: For Fixed and Mobile Networks - Computer Communications and Networks (Hardcover Book) [2013 edition] (2013)](https://imusic.b-cdn.net/images/item/original/040/9781447149040.jpg?lingfen-sun-2013-guide-to-voice-and-video-over-ip-for-fixed-and-mobile-networks-computer-communications-and-networks-hardcover-book&class=scaled&v=1622146412)