TY  - JOUR
T1  - Assessment of NITEL Exchange, Calabar, Nigeria
AU - , J.C. Ogbulezie AU - , M.U. Onuu AU - , D.E. Bassey 
JO  - Journal of Engineering and Applied Sciences
VL  - 3
IS  - 1
SP  - 55
EP  - 58
PY  - 2008
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2008.55.58
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2008.55.58
KW  - NITEL exchange
KW  -public switches answer-bid ratio
KW  -answer-seizure ratio
AB  - 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.
ER  -