To get the fastest 4G services, the network needs strong fiber optic network infrastructure as well. That's not in the country. Abu Saiyad Khan, senior researcher from Lern Asia, a telecommunication research institute, said the infrastructure for bandwidth supply is still very weak for the fast-growing four-year. According to the BTRC Infrastructure Sharing Policy, NTTN (Nationwide Telecommunication Transmission Network) operator can not use fiber optic sharing across the country.
However, NTTN operators have claimed that the quality of fiber optic infrastructures required for the fast-moving Four-G service is up to the upazila level of the country. Abbas Farooq, Head of Government Affairs, Private Firms of FTO Homes, told that, there are more than 60,000 kilometer fiber optic networks in the country. NTTN operators are fully ready to provide high speed transmission services to mobile operators upazila.
To get the Four -G service, SIM card and handset will be useful for this technology. There is a chance to find out whether your SIM is free or not. If Grameenphone users dial * 121 * 3232 # from the mobile phone then you will know that SIM is not a FourG in the return message. Robi customers need to dial * 123 * 44 # for this. And Banglalink subscribers can send 4G to mobile phone and send a message to 5000. In the message back, you will find information about 4G SIM. Teletalk has not yet launched such a service for their users.
If the SIM is not a 4G, then it will be changed from the respective mobile phone operator's customer service center. In order to change the SIM, photocopy of national ID card, photo and fingerprint (biometric verification) must be given.