Ethiopian Telecommunications Corporation (ETC) has acquired a patchwork of systems and processes that makes it difficult to cost- efficiently troubleshoot network faults , launch new services quickly, and track and tune the performance of services once delivered . This patchwork also results in increased operational and capital expenditures , so there is an obvious need for ETC to improve and evolve the network and service management environment. Evolving ETC s network and service management systems and processes shall be done in a well organized phased approach . ZTE is the first choice for ETC to assume this challenging responsibility and provide the National Network Operation Center (NNOC) solution .