Try this one here:
Code:
rtmpdump -r "rtmp://edge1.evolink.net:2020/fls" -a "fls" -f "WIN 11,5,502,146" -W "http://cdn.bg/flash/jwplayer510/player.swf" -p "http://cdn.bg/live/4eViE8vGzI" -T "B@1R1st1077" -y "bnt.stream" -o "BNT_1.flv"
If it doesn't work try RTMPDumpHelper with RTMPSuck and add port 2020 to the listening ports.
// As chap already suggested: You can use
Code:
http://edge1.cdn.bg:2020/fls/bnt.stream/playlist.m3u8
in VLC player. (Media -> Open Network Stream) The site uses RTMP->HTTP tunneling.