It seems that many people are used to "dual card dual standby", but in fact, not every mobile phone has the same "dual card dual standby"! Since entering the 4G era, dual card dual standby has been roughly divided into the following stages:
1, dual card dual standby 1.0: main card supports 4G, secondary card only supports 2G;
2, dual card dual standby 2.0: does not distinguish between primary and secondary cards, but card 1 supports 4G/card 2 is the highest 3G;
3, Dual SIM Dual Standby 3.0: Card 1 and Card 2 both support 4G, but when one card calls, the other card is offline.
So, don’t look at the dual card dual standby for a long time, but there are still many problems that have not been resolved. For example, if a card calls, the data flow of this card will be interrupted, and the other card will be offline directly and cannot be accessed at all. Fortunately, Huawei's P30 series of mobile phones have strong communication capabilities and have achieved dual-sim dual-4G dual-pass, allowing you to make calls and surf the Internet. Below, I will use Huawei P30 Pro to test it, and interested friends may wish to follow it!
1, dual card dual 4G online
get started with Huawei P30 Pro, at first glance, you can see that the small logo in the upper left corner is two 4G, which means that the two cards are on the 4G network at the same time, and both the call and data quality are guaranteed. In addition, you need to pay special attention to the fact that there are two HD icons on the left side of the small label, which means that Huawei P30 Pro supports dual VoLTE high-definition voice calls-while ordinary mobile phones only support single-card VoLTE.
Open the settings page and you can see that Huawei P30 Pro not only supports dual 4G online, but also smart switching of mobile data, maintaining the best data network speed anytime, anywhere (card 1 And card 2 smart switch). At the same time, Huawei P30 Pro dual-card direct calls can be transferred to each other without missing any phone calls.
2, call and surf the Internet, and play games without pressure
In daily use, we often encounter such a situation: a call comes in, the network is interrupted; it is okay on weekdays, if It happens when you are black with your friends, and it is simply painful. Fortunately, Huawei P30 Pro supports parallel transmission of voice and data, which means: Huawei P30 Pro can make calls and play games at the same time!
From the picture above, everyone can see Out, the editor is using Huawei P30 Pro to push the tower, and a call comes in at this time. But "Glory of the King" still maintains a 72ms delay, which means that the network is uninterrupted and can be used with confidence.
3, the dual-pass function is super powerful, dual-card phones are connected at the same time
Dual-card users often encounter such a situation, such as when a card receives a call, The other card cannot be dialed in, and an "X" is displayed in the status bar at the top of the phone. However, the editor with Huawei P30 Pro will not have such troubles, and the dual-pass function is perfectly solved. Specifically, Huawei P30 Pro can connect to two phone calls of Card 1 and Card 2 at the same time.
(Dual-pass test GIF animation)
Please see the test animation, Huawei P30 Pro's Unicom card 1 calls into the phone, and then the telecom card page 2 calls Into the phone. After hanging up the telecommunications card 2, you can continue to answer the Unicom card 1. It can be said that the dual-pass function of Huawei P30 Pro allows your two cards to not interfere with each other, realizing a true dual-card dual 4G dual-pass.
Because of the strong communication strength, Huawei P30 series has also been recognized by professional institutions. First, it obtained the five-star certification of the communication ability test of the Tyre laboratory, and then the In the 2019 Smart Hardware Quality Report (Phase 1)", the winners and runners-up in the price range above 3500 yuan. If you want to feel HuaFor the freedom of the P30 series of true dual 4G, don't you hurry up to pick one?
