The telecoms software industry is consolidating. This is equally true of revenue assurance software vendors, as we have seen from buy-outs and mergers in the last few years. In the last two years, we have seen Cartesian bought by TMNG, Praesidium and Cape taken over by WeDo and just recently Compwise was bought by ECtel. The trend will continue, but it will take a long time before the revenue assurance industry is reduced to the three or four major players that it can profitably sustain in the long run. To understand some of the factors, take a look at this very well-written article about the drivers and obstacles to telco software consolidation.