Quad-band usually refers to a phone using GSM technology. A quad-band GSM phone is one that can be used for basic service almost anywhere in the world. That's because most countries have at least ...

According to the statistics, as at August 2024, the total number of subscribers utilising mobile GSM technology for their internet usage, was 130 million. The figure however increased to 132 ...

It includes an end-to-end GSM-R solution (radio and core network including NetAct, Messaging and diverse third-party products), an IP-MPLS core network, security, and DWDM technology for the ...