@article{MAKHILLJEAS20083112934,
    title = {Assessment of NITEL Exchange, Calabar, Nigeria},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {3},
    number = {1},
    pages = {55-58},
    year = {2008},
    issn = {1816-949x},
    doi = {jeasci.2008.55.58},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2008.55.58},
    author = {J.C. Ogbulezie,M.U. Onuu and},
    keywords = {NITEL exchange,public switches answer-bid ratio,answer-seizure ratio},
    abstract = {Measurements and analyses of telephone in public switches in Calabar were undertaken in Nigerian Telecommunications Limited (NITEL), Calabar exchange. Data collected from 6 routes were analysed. Results show that the answer-bid ratio for the routes was in the range 9.70-47.40, answer-seizure ratio, 10.10-47.80 and call completion ratio, 77.70-100. This means that not up to half the number of calls were effectively carried, thereby implying poor performance compared to international evaluation indices.}
    }