Operator-assisted drive tests to check call drops soon: Trai 0 05.02.2017 17:13 Zee News (zeenews.india.com) Telecom regulator Trai has said that 'operator-assisted' drive tests, which measure call drops and service quality, would start across various locations soon. Партнёры Smi24.net Все новости за 24 часа Музыкальные новости Агрегатор новостей 24СМИ
