Double standby means that two cards can stand by at the same time, that is, two cards can be used at the same time, which is equivalent to having two mobile phones. Single standby is no different from ordinary mobile phones, except that two cards are inserted and only one can be used.

Insert two cards with two numbers when you buy them. As long as you can connect, it is double standby. Otherwise, it is standby. Standby is not recommended, just like ordinary mobile phones.

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Dual sim card

Dual-card dual standby means that two cards (A.B.) can be installed in the mobile phone, and both cards can be used at the same time, which means that no matter who calls, A.B. will not interfere and you can answer it. Dual-card single standby means that you can also install two cards, but you can't use B with A, and you can't use A with B.

dual sim dual standby

DSDS (Dual SIM Dual Standby) is a new term in the mobile phone industry. Dual card dual standby means that a mobile phone can insert two mobile phone cards at the same time and stand by.

Simply put, consumers can use two GSM network phone numbers on a mobile phone and two CDMA network phone numbers on a mobile phone.

Dual-card dual-standby mobile phones can generally be set to the following situations: 1, only SIM1; 2, only SIM2 is stuck; 3. Double card opening. With the dual-card dual-standby mobile phone, busy people don't have to hold two mobile phones in their hands, which is simple and convenient.