ct was to analyze this market and the research goal was to develop a generic methodology for analyzing a vertical software market. The methodology employed was based on the model of vertical software market evolution resulting from previous research. The target domain of telecom operator software used to be dominated by internal software development of national and regional operators as well as software devel- oped by network equipment vendors. Due to introduction of new mobile communi- cation technology and deregulation the operators have entered a phase of fierce competition. Since the start of the 2-year research undertaking (2007-2008), various technological developments have touched the CSP area of business. Firstly, during that time the accelerating diffusion of high capacity IP networks (broadband) has had an impact in communications in general all around the Western world, turning the interest of consumers and suppliers to the IP services potentially at the cost of telephony services that include both the old PSTN and mobile services using the evolving GSM and 3G technologies. Secondly, there exists a spread of wireless LANs, and the wireless broadband (e.g., WiMAX) technology as a swift way to provide access to IP services in areas with no cabling (copper, coaxial or fibre). Thirdly, the advanced mobile network technologies (such as HSPA) are evolving towards the next generations and enabling converged data, communications and media services on mobile terminals. Further, a broader variety of services, including diverse media and content offerings (e.g., video and TV on handsets), are becoming enabled with mobile networks and enhanced mobile terminals. All this makes the targeted software market a research focus area of utmost interest. Looking into the service orientation in architectures and business models that is gaining ground in ICT applications, the CSP and the software markets seem to have a common future. The convergence of ICT and telephony, the mobile and IP services that can be extended to pro