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 ...

Phone and Android users will be able to exchange end-to-end encrypted (E2EE) RCS messages in the near future thanks to newly ...

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 ...