It's not only possible, but easy isn't it? Couldn't they just cut the cables leaving the country? The article mentions they targeted primarily mobile communica

It's not only possible, but easy isn't it? Couldn't they just cut the cables leaving the country? The article mentions they targeted primarily mobile communications. Well, a quick Google search for a map shows only a couple dozen cell phone towers in Ethiopia, so it's not hard to seize them all. And China shows that it is perfectly capable of controlling internet access for a billion people.