
NBTC staff visited Su-varnabhumi Airport on Monday to monitor the call-service quality of all cellular operators after receiving complaints from customers of Total Access Communication (DTAC) that they had difficulties making calls there on Sunday.
Checks at the airport found that all three cellular operators’ call signals experienced problems in some areas at the airport.
The NBTC yesterday ordered Advanced Info Service, DTAC and TrueMove to improve their service quality at the airport within 30 days.
Next, the agency plans to monitor network quality at Siam Paragon, Chidlom and Siam Centre in Bangkok.
The watchdog will buy another three signal-monitoring vehicles, each worth Bt10 million, at the end of this year. It has two vehicles at present.