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 ...
Scancom, which launched services in 1996, operates a nationwide mobile phone network using GSM technology. Under the brand name Spacefon, the company has become the leading mobile provider in ...
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 ...