The thing is that the competition is fierce in this field. To see that, just look at the number of mergers: Nokia and Siemens, Alcatel and Lucent etc.

The chinese companies such as Huawei and ZTE lowered the margins and really shook the market some years ago.

Personally, I don't imagine a bright future for those companies. So I'm with the selling strategy. I worked at a competitor of those companies based in Brazil. The scenario wasn't pretty when I left.