The Executive Vice Chairman of the Nigerian Communications Commission (NCC), Prof. Umar Danbatta has given the regulatory requirement that is acceptable from Mobile Network Operators regarding dropped calls.

According to the former University lecturer, the Key Performance Index (KPIs) from the commission allows only one drop call rate out of 100 (1:100 ratio).from Mobile Network Operators (MNOs), stressing that the MNOs must maintain the regulatory requirements.

Speaking to Jouijhrnalists on the sideline during the Nigerian Academy of Engineering (NAE), annual lecture/dinner in Lagos, Prof. Danbatta, explained that a number of cellular network subscribers are grappling with the issue of a frequently dropped call, hence the mandate to maintain only one drop call rate out of 100 (1:100 ratio).

“We said that out of 100 calls, only one is allowed to be dropped. That is the irreducible minimum for drop calls. As the regulator, we make sure these requirements are respected with regards to the set parameters,” he assured.

He emphasized that dropped call has been the subject of several network performance studies and a major contributor to service optimization in a well-established cellular network, adding that the objective of the parameter is to provide the subscribers with an expectation of how successful a cellular network will be at retaining the signal throughout the whole duration of the call.

Prof. Danbatta also disclosed that the NCC has the capacity to monitor the KPIs across the country; States, FCT and local governments and ensure the MNOs adhere strictly to the guidelines.

Dropped call rate is defined as the rate of calls that end due to technical reasons and its probability as drop-call probability, which the regulators and monitor agents used to provide a measure of performance for failed calls in progress.


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