dual sim

What is a dual SIM phone?
dual sim phones come with many different benefits, making them a must-have device for many. however, not everyone understands what 'dual sim' means or how dual sim phones work.
Why are smatphone now using 2 SIM technology with 2 standby waves but not 2 SIMs at the same time?
the 2-cell 2 sim phones (dual sim) can connect to two networks (same or different carriers to receive and make separate calls) on the same phone becoming more and more popular and familiar. belongs to the user.