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This article mainly introduces "what is the difference between dual-card dual-standby single pass and dual-standby single pass". In daily operation, I believe that many people have doubts about the difference between dual-card dual-standby single-pass and double-standby single-pass. I have consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts about "what are the differences between dual-card dual-standby single-pass and dual-standby single-pass". Next, please follow the editor to study!

Differences: 1. Dual-standby dual communication means that a mobile phone connects signals from two communication networks at the same time; double-standby single communication means that two mobile phone cards constantly switch between the two networks of the two cards through the underlying software and control chip of the mobile phone. 2. The way of receiving the phone is different, the two cards in the dual-card and double-pass can get through, but only one of them can talk to each other, but not the double-card and single-pass.

Operating environment of this tutorial: IOS15 system, iphone12 mobile phone.

The difference between dual-card and dual-standby single pass and double pass

First, the characteristics are different:

1. Dual-standby dual communication: when a mobile phone connects signals from two communication networks at the same time.

2. Double standby and single communication: two mobile phone cards constantly switch between the two networks of the two cards through the underlying software and control chip of the mobile phone.

Second, different ways of receiving phone calls:

1. Double-card single pass: after inserting two SIM cards An and B into the mobile phone, if someone calls the B card during the call period, it will indicate that it cannot be connected or is not in the service area. When the A card call ends, the system does not display the missed call prompt of the B card. In addition, because the dual-card dual-standby phone needs to manually specify a SIM card for the networking function (assuming B), the networking function of the B card will also be blocked when the A card calls.

2. Dual-card and double-pass: after inserting two SIM cards An and B into the phone, during the A-card call, if someone calls the B-card and hears the tone of "Dudu na" (busy tone), you can make two choices: continue to keep the A-card call, and the system will display the missed call of the B-card at the end of the call. Choose to answer the B card phone, at this time the system will automatically maintain the A card call, after the end of the B card call, you can also switch back to the A card call (as long as the other party has not hung up).

At this point, the study on "what is the difference between dual-card dual-standby single-pass and double-pass" is over. I hope to be able to solve everyone's doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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