Good opening, nice to see someone else has this in their portfolio. 
I bought this myself last spring. The timing wasn’t quite right, then came the Q2 report, and my investment in this is still at a loss at this point.
But my belief in this is strong. The P/E is indeed high here, but the operations are constantly moving strongly forward. SDS already has many contracts with major operators (Zain, MTN, etc.) and more are steadily coming, and the recently announced contract with Vodafone is certainly a very significant step: It is financially significant, but above all a great show of confidence from Vodafone as it starts operations in Oman. This could lead to a lot of good things.
This can by no means be called a startup; the operations are already well underway, the customer base is strong, but the operations are still in their early stages. There is plenty of market, and new orders are indeed coming in all the time.
The Q2 figures were a slight disappointment, but on the other hand, there are considerable differences between quarters; they don’t progress at a steady pace. The stock reaction was certainly justified, though. The positive thing is that profitability was still at a good level, especially considering the acquisition. The acquisition of Riaktr also seems like a strategically strong move, and will naturally only be fully reflected in the figures in the future. Of course, it would be nice to see the topline get on the right track in Q3, but now that these announced orders are coming in at this pace, I can’t be too worried about this in the long term.
I’ll have to update my own forecasts for this at some point; it has been neglected a bit, so the content of this message is quite limited. 
But there is plenty of potential here!