Obtaining justice in their own system is likely to be really, really hard. I don't know for certain but I would imagine that in Egyptian Law the telecom companies would be able to successfully argue that they were merely following governmental orders, and the government will claim some kind of perogative to act - probably grounded in some kind of martial law rights. The problem is that the law as it stood both reflected and enable a specifically ordered power structure - the law would give deference to the government in many areas.
So you're stuck with the hope that the law would be adapted, a process that takes a lot of time and negotiation, and protections for civil society added. Problem - a lot of states forbid ex post facto prosecution. Egypt is a signatory to the Arab Charter on Human Rights which
specifically states that
o crime and no penalty can be established without a prior provision of the law. In all circumstances, the law most favorable to the defendant shall be applied.
. So the only option is likely to be appeals to international courts. Using the courts as they stand in Egypt is likely to be futile at present, and in the future they'll be unable to claim for injuries suffered prior to the adoption of new laws. It's a difficult situation to be in.
Moreover, there's a lot of reasons to make an international case here - and most of them are rooted in good ol' money and politics.