Takumi did not conduct the cross-world test personally.
Because the Gate of Babylon is bound to him, wherever he goes, the Gate of Babylon follows him. Therefore, to test whether the wireless terminal can connect across worlds, the only way is to keep it stationary and let the wireless terminal go to other worlds, or vice versa.
He handed the wireless terminal to Riche and asked her to take it through the Dimensional Gate to other worlds, and then wait for the connection.
The result was that the connection was successful.
Just as Takumi expected, the connection between the Gate of Babylon and its collection exists even across worlds. Then the communication method achieved by borrowing this connection can naturally also cross world barriers.
"The experiment was a complete success! Now the means of cross-world communication is finally available!"
Takumi waved his fist excitedly.
"It turns out that this is what Master cares about. No wonder he said this is very important to Dimension City."
After hearing this, BB finally understood why he was so excited at first, and even fully cooperated with this research.
"Of course, cross-world communication methods are much more important than just letting other people use the Moon Cell. BB, you have really made a great contribution this time."
"Don't worry, I won't go back on the benefits I promised you. I will honor them as soon as possible."
"Before that, you can continue to upgrade the transmission performance of the wireless terminals. Although it is enough for communication now, there will be a need to transmit large amounts of data in the future. Upgrade as soon as possible to be prepared."
"Okay, I'll do it next." BB nodded, did not reject the arrangement, and turned around to continue studying how to improve the performance of cross-world transmission.
Seeing this, Takumi did not disturb her. He notified Riche through the Moon Cell that the experiment in the other world was over and asked her to come back. After that, Takumi left the Spiritron Network and returned to the bedroom of the City Lord's Mansion.
"Now that cross-world communication methods have been developed, it is time to popularize them."
Needless to say, Creation Magic activated!
Hundreds of mobile-phone-style wireless terminals were generated. Not only that, Takumi also made some improvements to the original rudimentary functions of the wireless terminals, which could previously only make calls and transmit data.
Needless to say, mobile phones have functions such as positioning, map navigation, photography, and Internet access via the Spiritron Network. Takumi also made some changes to the wireless terminal that are not available on ordinary mobile phones.
For example, Soul Binding allows the interface to be directly projected into the user's mind, and the user can control it with their thoughts.
For another example, the wireless terminal can be used even if it is placed in the Inventory, which avoids the risk of losing the wireless terminal and saves the need to carry it around all the time or risk it being damaged due to a collision.
Then, Takumi took these wireless terminals to find Riveria and explained the situation to her.
"Let us distribute this thing to our own people regardless of whether they go out now. From now on, all our communication equipment must be replaced by this kind of device that can cross worlds."
As for the previous communication equipment, ordinary mobile phones, and signal base stations, they could only be scrapped. After all, the products have been iterated. With new and better equipment, the old and backward equipment will naturally be eliminated.
"Is cross-world communication actually successful? That's great." Riveria was also overjoyed when she learned that cross-world communication was completed.
She fully understood the inconvenience of not having cross-world communication means. Whether it was the letters sent by Darkness from Konosuba's world or the connection between the messengers and the expedition teams.
Compared with modern digital communication, which has the efficiency of almost real-time transmission, the ancient way of relying on people to deliver information is too time-consuming and laborious. This caused a lot of inconvenience for Riveria, the person who was debugging and coordinating everything at the rear.
Just the time spent transferring orders and reports greatly reduced work efficiency. It can be said that for cross-world matters, no matter how small, it would take a lot of time to deal with any issue.
For example, if you need to ask for her opinion on something, if it can be communicated across worlds, this is just a matter that requires her to agree or reject it instantly. But without the means of communicating across worlds, if the people below want to ask her something, they have to come back from other worlds to ask her in person, and then go back again. This wastes time and manpower and reduces efficiency.
Now this problem was finally solved, and Riveria was naturally very happy.
"Don't worry, leave this matter to me. I will make sure everyone receives this new phone as soon as possible."
Riveria took these wireless terminals and quickly arranged the distribution. While having people distribute them to her own people in the inner city, she also had people deliver them to those operating in other worlds.
Not long after, from the backend of the Moon Cell, Takumi saw more than two hundred girls bound to wireless terminals and connected to this cross-world network.
Seeing this, Takumi thought for a moment and asked the Moon Cell to write a program and send it to everyone's terminal. This was a social software similar to Line, which is convenient for everyone to contact each other.
Then, when the girls received the App, they curiously went in to see what was going on. Takumi formed several chat groups and pulled them into the groups respectively.
[Ding dong! You have been invited by the City Lord to join the Dimensional City Group. Come and say hello to everyone.]
This is a reminder that all girls received.
[Ding dong! You have been invited by the Head of the Family to join the Loving Family Group. Come and say hello to everyone.]
This is a reminder that only Takumi's wives received.
[Ding dong! You have been invited by Takumi to join the Dimensional Chat Group. Come and say hello to everyone.]
This is a prompt that only those with the Dimensional Gate's authority—that is, visitors representing their respective worlds—received.
...
In the Dimensional Group.
Alice Nakiri: ? ? ?
Asuna Yuuki: What kind of group is this? How come I have more of these than others?
Asuna Yuuki and Alice Nakiri looked at the chat group list, seeing they had one more chat group than the other chefs around them, and couldn't help but look confused, wondering what was going on.
Megumin: +1
Sakura Matou: +1
Hermione: Me too. [GIF]
Kanae: Huh? I have it too?
Many people also discovered that they had one more group than others.
Saeko Busujima: It seems that those of us with the authority of the Dimensional Gate have it.
Hestia: Takumi, why don't you come out and explain?
Seeing this, Takumi nodded with satisfaction and quickly replied.
Takumi: Yes, this is a platform for people with the authority of the Dimensional Gate to communicate with each other.
Takumi: Don't say that we ourselves don't have the need to form a separate group. I am mainly targeting those visitors who have not joined Dimension City yet.