@CHAPTER{ iet:/content/books/10.1049/pbte019e_ch11, keywords = {network solution;tariffs;cost;telecommunications requirement;financial evaluation;system solution;telecommunications traffic;communications need;technical evaluation;manager;operational evaluation;private telecommunications facility;}, title = {Finding the right system/network solution}, booktitle = Telecommunications Traffic, Tariffs and Costs. An Introduction for Managers, publisher = {Institution of Engineering and Technology}, year = {1988}, pages = {154-176}, series = {Telecommunications}, doi = {10.1049/PBTE019E_ch11}, url = {https://digital-library.theiet.org/;jsessionid=70emeok10nfmv.x-iet-live-01content/books/10.1049/pbte019e_ch11} }