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Through the use of a SIM card, SingTel also provides connectivity to closed-circuit televisions (CCTVs) which are mounted at locations without fixed Internet connection.
This means video footage from these devices can be streamed back to the main system, the spokesperson said. If the mobile network is congested, users can adjust the video bitrate accordingly to ensure continuous streaming. The low bitrate images can later be enhanced for clearer viewing, he noted.