NATIONAL COMMUNICATIONS AUTHORITY: VOICE QUALITY RATINGS
MOBILE NETWORK QUALITY OF SERVICE MONITORING RESULTS
Following a Quality of Service (QoS) monitoring conducted by the National Communications Authority (NCA) for the 2018 Second Quarter for six (6) regions, the Authority wishes to publish the Voice Quality monitoring results for the information of the general public. These results cover 96 district capitals within five (5) regions namely Central, Brong-Ahafo, Volta, Upper East and Upper West that were not covered in the earlier 2018 Quarter One (Q1) monitoring.
In addition, the voice quality for 28 district capitals in the Ashanti Region that were not monitored in Q1 are also included; results for only two (2) Districts were made available after Q1 monitoring for the Ashanti Region.
This monitoring is in pursuance of Annexure D1 and D2 of the Cellular Mobile Licence as well as the Annexure A of the 3G Licence of Telecommunication Operators.
One of the Key Performance Indicators (KPIs) tested to ensure compliance is the Voice Quality which is measured by the Mean Opinion Score (MOS). The MOS is a quality measure that has been used to assess the human user’s opinion of call quality, testing quality voice transmission, quality issues and measuring voice degradation and performance.
MNOs are required by their licence to meet a minimum score of 3.5 for more than 95% of calls.
The standard for measuring MOS is an International Telecommunication Union (ITU) accepted
Reference: ITU-T Recommendation P.863.
We bring you the MOS results for all MNOs in the regions which were monitored.
VOICE QUALITY LEGEND
Voice quality on mobile networks in Ghana is assessed by the International Telecommunication
Union standard, ITU-T P.863 Perceptual Objective Listening Quality Assessment (POLQA).
Mobile Network Operators (MNOs) are required to meet a minimum score of 3.5 for more than 95% of calls as a licence
4.1 ≤ MOS
Perfect. Comparable to face-face communication.
3.5 ≤ MOS
Sound is clear but with some imperfections.
2.5 ≤ MOS
Nearly impossible to communicate. User has to make extra effort to communicate.