BSNL Launches Indigenous 4G Site in Kolkata Bharat Sanchar Nigam Limited (BSNL) has recently launched an indigenous 4G site at the Ballygunge Telephone Exchange in Kolkata, with…
India’s largest telco expands VoLTE services India’s largest telecommunications service provider, Bharti Airtel, has expanded its Voice over LTE (VoLTE) services in India, launching in Kolkata.…
