EGONET: A genetic algorithm model for the optimisation of telephone networks. The aim of this paper is to study the use of genetic algorithms for the optimisation of telephone networks layout design. The genetic algorithms are used to design the network in a geographical sense with minimum costs depending on a set of real-world rules (constraints). A genetic algorithm tool (EGONET) is described. EGONET is written in ANSI-C and thus can be used on a wide range of platforms. EGONET was tested under Unix/Linux, OS/2 and Windows 98.