The dual SIM dual standby technology is the most commonly found dual SIM system in most of today’s smartphones. That means that when using 3G or 4G mobile data on one SIM card on a dual standby smartphone, the other SIM card will not be disabled. That means that when a SIM card is active on a call, it will use the transceiver exclusively.ģG and 4G mobile data connections, on the other hand, use packet switching data connections. This limitation, however, is only limited to mobile networks that use 2G technology for voice calls because 2G voice calls use circuit-switched data connections. As long as both SIM cards are in standby mode (i.e., not in use), you can make and receive calls on any of them. Stack Exchange Network Stack Exchange network consists of 178 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. It will become available again once the active SIM card is off the call and back on standby.
For this reason, when one SIM card is on a call, the other will be unavailable.
DSDS allows your smartphone to have two active SIM cards that can both be reached at any time, as long as they’re both in standby mode.ĭual SIM dual standby smartphones use only one radio transceiver for both SIM cards. A dual SIM dual standby smartphone takes the DSS technology to the next level.
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