Information regarding the assurance of quality parameters for the public service of mobile telephony (from Q1, 2012):
| Indicator / Parameter | Measured value |
|---|---|
| 1. Network availability (NA) | |
| 1) Coefficient of the network availability, Cd | 99.9% |
| 2. Service accessibility (SAc) | |
| 1) the rate of failed calls | 0.12% |
| 2) the rate of SMS connection that were not sent end-to-end | 1.52% |
| 3. Service Integrity (SIn) | |
| 1) the established level of the calls quality for evaluation methods: | |
| a) medium evaluation method (MOS) | 3.5% |
| 2) the rate of calls that meet the quality conditions for evaluation methods: | |
| a) medium evaluation method (MOS) 82% | |
| 4. Service consistency (SC) | |
| 1) the rate of interrupted calls | 0.78% |
| 5. Service reliability (SR) | |
| 1) the time set for the failures elimination and recovery of the access to the service | 7.32 hours (basic stations) |
| 2) the rate of failures fixed within the established time | 95% |
| 6. Charging performance (CP) | |
| 1) the rate of appealed invoices | 0.01% |
| 7. Users’ satisfaction by service (USS) | |
| 1) the rate of complaints regarding the technical and organizational features of the service | 0.06% |
| 2) the medium time of reply for the “Operators’” service | 12 seconds |
| 3) the rate of calls to the “Operators’” service which were answered within maximum 30 seconds from the total number of the calls to this service | 88% |