interactive voice over satellite is problematic due to the inherent 
latency of the signal travelling 40,000km distance to the satellite 
and another 40,000km back.  this adds 125ms of latency in each 
direction (to/from the bird), give or take.  if you remeber using 
satellite for long distance calls it took some getting used to (a bit 
like talking on a 2 way radio) and the perceived signal quality was 
less than using an under the pond cable.  satellite for 1 way video is 
fine, carriers use it for backhaul on a regular basis, but interactive 
video suffers the same difficulties as interactive voice.

so with the amount of latency already involved i would try to reduce 
any further quality impairments caused by voip or digital video 
processing.  satellite offers a variety of quality impairments of its




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