It's actually possible to connect to the four major operators without changing cards, numbers, or packages.

"You can use the networks of the four major domestic operators without changing cards, numbers, or packages." If this was said in the past, I believe many people would find it bizarre, but I didn't expect it. Now it actually came true!

The cause of the matter is this. When Tony was messing with his mobile phone two days ago, he accidentally saw a switch called "Other Network Roaming" in the developer mode:

We are already very familiar with long-distance roaming. For example, my Telecom mobile phone number was registered in Hangzhou, and my home address is in Zhejiang. But because it supports remote roaming, when you go to other provinces in the country, as long as there are local telecommunications base stations, the mobile phone can still access the Internet.

However, to be honest, this is the first time I have heard of this “different network roaming”.

Later I checked online and found out that I bet it really means what it means. After turning on this function, as long as there is a signal from China Mobile, China Telecom, China Unicom, and Radio and Television, your mobile phone can access these operators. Business network to achieve Internet access.

And what’s the most exciting thing?

When we use the network of other operators, the mobile phone still comes with the original package. If you want to use the mobile network because you have a telecom card, you will not need to apply for an additional mobile package, let alone pay anything. Just use the inter-network roaming fee and that's it.

As for how to settle the "network fee" across networks, this is a matter for the operator to which the mobile phone number belongs, and we don't need to worry about it at all.

Good guys, when we apply for a mobile phone card in the past, we may choose an operator based on whether the signal coverage is good and whether the package is affordable. With roaming on different networks, wouldn't it be enough to just look at the package? Anyway, you can cross operators, and you don’t have to worry about which one to use~

For those friends who are considering whether to port their number because of poor mobile phone signal, this will There is no need to worry anymore. Anyway, if the network of your own operator is not good, you can still use another network. In this way, the problem of no mobile phone signal will naturally no longer exist.

Don’t tell me, I thought so too at first.

But after understanding this function, it turns out that I am too young. At this stage, roaming on different networks is quite limited. To sum it up in one sentence: This function does work, but many people may not. It can be used, and there are conditions for using it.

Because this domestic pilot of different network roaming technology is only in one province - Xinjiang, in order to reduce the cost of base station construction in this vast and sparsely populated province, and at the same time improve the overall network coverage.

In fact, speaking of it, inter-network roaming is not a new technology at all. For example, when we travel abroad, after landing, we can still access the Internet without using our original China Mobile, China Unicom, and Telecom cards.

This is because domestic operators have signed agreements with foreign operators, so foreign operators allow our Chinese SIM cards to access their base stations. After that, they will find domestic operators to settle network fees. , and finally the domestic operators asked us for the money.

Another type of inter-network roaming is for domestic operators to open their own communication base stations to each other domestically, in order to reduce the cost of repeatedly building base stations in the same area. .

For example, in the United States, which is vast and sparsely populated, their telecommunications law stipulates that operators with corresponding qualifications must provide basic network facility services to every licensed telecommunications service provider.

The reason why domestic "different network roaming" was launched relatively late has actually been discussed on forums such as Communication Home and c114, which are often criticized in the "industry" - in fact, the fundamental reason is still the issue of profit distribution. .

Just imagine, if China Mobile, China Unicom, China Telecom, and Radio and Television all share their own networks, then whoever builds more base stations will definitely suffer, and the one with the fewest base stations will get a big advantage.

China Radio and Television, as the latest fourth largest operator, has reached a "different network roaming" cooperation with China Mobile, and the prerequisite for their cooperation to be formed is 700 MHz golden frequency band - The signal in this frequency band is fast and stable, but the Ministry of Industry and Information Technology only allowed it to be used by radio and television.

After reaching the cooperation, China Radio and Television can use China Mobile’s base stations for its own users, and China Mobile can use 700 MHz high-quality signals for its own users, and two bowls of water will be served smoothly.

In addition, China Unicom and China Telecom actually have a small alliance, because China Mobile currently has the largest number of 5G base stations. In order to compete with China Mobile’s 5G coverage, China Unicom and China Telecom also signed a treaty on the co-construction and sharing of base stations.

So in a sense, each of us may have "partially experienced" the technology of inter-network roaming.

But if we really want all four operators to roam on different networks, users of each operator can enjoy the most perfect signal. . . Hey, you can guess this kind of thing of touching cakes between each other without even thinking about it. It is definitely not proposed and promoted by the operators themselves.

So it’s very simple. This time Xinjiang’s different network roaming pilot is organized and coordinated by the Ministry of Industry and Information Technology, the superior authority of all operators. The goal is to cooperate with the national “Signal Upgrade” special action to allow more people to 5G can be used.

And in fact, from this news, it can still be seen that the Ministry of Industry and Information Technology, as the head of each family, is working hard to carry water - you see, only roaming on different networks Data traffic under 5G signals instead of roaming 4G can help operators save a little money on inter-network settlements.

In fact, when the 4G era and 5G construction were about to begin, the Ministry of Industry and Information Technology facilitated various operators to form tower companies to share base station plots and save the cost of land acquisition.

When this round of 5.5G network upgrade is about to begin, the Ministry of Industry and Information Technology has promoted the pilot of inter-network roaming technology.

With this incident as an introduction, the final result will definitely be to fully roll out all-operator inter-network roaming technology nationwide after the entire country is upgraded to 5.5G network. So although it is useless now, we are still far away from everyone. The day when every elevator is filled with 5G signals is definitely not far away.

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