I got a reply from a mate who has sat broadband. He is an IT guy with extensive experience in installing/configuring sat and radio networks so if he says black magic believe him.
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One if the IceInSpace crew is asking about sat service (in particular about VOIP) before he forks out the money. Any comments?
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VoIP and SAT are not real good bedfellows but they *can* be made to play together. You just have to be prepared for a lot of fiddling as it is a fair bit of black magic to get it working and I don't think there are any hard and fast rules - every installation I've dealt with so far has been different.
A few things to keep in mind though.
1. Latency (pretty obvious)
2. Errors (not so obvious)
The <his place in FNQ> link for example becomes unusable during a storm as error count goes above the 27% threshold that TCP is capable of dealing with.
The other thing about TCP streams is that it takes them a lot longer to work out something is amiss so resends take longer. That means that your throughput turns to pot a whole lot quicker the moment you get errors.
On other thing that makes a difference is that compression over sat links is actually a *very* good thing.
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