Hey,
at first you must download your Channellist (m3u file)from the AVM 6490. This file includes the rtsp stream like:
rtsp://192.168.0.254:554/?freq=114&bw=8&msys=dvbc&mtype=64qam&sr=6900&specinv=0&pids=0,16,17,18,20,115,2047,36,2048,2051
Then you need to create a IP Network:
!iptv.PNG!
Now you add a MUX (rtsp stream):
!mux.PNG!
Now you should see on the TAB Services the Channels. As EPG Grab i hve used EIT: DVB Grabber
I hope i could help you, and you understand my English :)