OREANDA-NEWS. October 09, 2013. In September 2013, the Estonian Technical Surveillance Authority (TSA) measured the quality of mobile service.

The survey focused on call success rate – an area where, according to the media, consumer satisfaction has decreased lately. TSA made 1,400 40-second calls across Estonia using EMT's, Elisa's and Tele'2 networks. The testing was conduced on large roads and in cities in 13 counties.

The success rate of calls was measured at 99.2% for EMT, 97.9% for Tele2, and 97.3% for Elisa. The success rate indicates the number of calls completed on the total number of call attempts. The main reason for call failure was unsuccessful attempt to initiate the call (dial blocking). Out of 1,400 calls made, the call failed 5 times in EMT's network, 22 times in Tele2's network, and 30 times in Elisa's network. The main reason for call initiation failure was network overload.

Tests calls were made in a moving car, and the phone was locked in the GSM network, which is still the main technology used to provide voice services. The phone model used for testing was Nokia N95, which has good reception properties.

According to TSA, the results of the survey show that Estonian mobile networks are of high quality, and that subjective perception of a decrease in voice service quality can be attributed to poor smartphone reception, or a few sporadic areas where coverage is low.