BSNL to Challenge Reliance Jio, Bharti Airtel With D2D Technology
State-run telecom company Bharat Sanchar Nigam Limited (BSNL) had showcased the direct-to-device (D2D) technology at the India Mobile Congress last month. With this, calls can be made without mobile network or SIM card. BSNL has started the trial of D2D service. With this service, mobile devices like smartphones can be connected through satellite network. It…