http://www.wingspeedcorp.com/aaa-pdf...Case-Study.pdf
This is another system in use. We have had some implementation problems with them. Their deal is all in one, the
"XL Link Voice & Data Communication System" is supposed to be less costly and more reliable than regular satcom.
In reference to an above note, only one EFB is required if you maintain no paper jep backup's. If you can convince your fed that none are required because you maintain an emergency paper stash in your crew flight lounge then none are required.