All Information and Communication Technology (ICT) systems have vulnerabilities. Weakness in these systems are introduced either during the specification, implementation or operational phase. Leaving aside these introduced vulnerabilities are intentional, the fact remains that these factors make information …

Rapid creation of new services for telecommunications systems is hindered by the feature interaction problem. This is an important issue for development of IN services, not only because of interactions\namong IN services themselves but because of interactions of IN services with switch-based services …