Everyone in the office didn't expect Li Junhao to say this, and they were all stunned......

After Wu Yusheng was stunned, he hurriedly bowed deeply, smashed his head on the coffee table, and said, "I'm sorry, Mr. Pan Sen, it's my fault!" I beg your pardon! ”

Looking at Wu Yusheng, whose head was on the coffee table, Li Junhao shook his head and was speechless, this guy has been in China for five years, and he still behaves like this, isn't he afraid of being recognized? But I guess it's going to hide it from other people!

"Alright, get up!" Li Junhao said, "I can forgive you for the previous incident; But I wonder what you will do in the future if I let you go this time? ”

Wu Yusheng, who had just raised his head, hesitated for a moment and said, "Mr. Pan Sen, I need help now!" My wife is five months pregnant, I hope they are safe and I hope you can help me! As he spoke, he slammed his head on the coffee table again, making a "bang" sound!

Li Junhao was stunned by him, turned his head and looked at the other people in the circle room, but didn't find any hints - everyone was waiting for his decision!

At this time, Li Junhao "saw" that on the detection radar in his mind, the color of Wu Yusheng's light spot in front of him was changing rapidly, and it turned from gray to green extremely quickly! Is this the condition for acceptance? He was very surprised by this, but his first reaction was - on the red bottle!

——

Half an hour later, Wu Yusheng, who had become his own person, completely abandoned his Japanese identity and became Chinese, and introduced the current situation of wired communications in the region, his experience, and what he now mastered.

There are two telephone networks operated by the Shanghai Telephone Company, the American Commercial Shanghai Telephone Company, and the Shanghai Telephone Bureau, which was formerly Chinese-funded and is now controlled by Japan.

Huhai Telephone Company is centered on the two major concessions, and its business extends to the cross-border road construction area and even the Chinese boundary, and has 9 telephone offices, namely:

Central Office, No. 232, Jiangxi Middle Road, opened in May 1910.

Lusheng Office, No. 31, Lane 563, Jiangsu Road, opened in June 1926.

Hongqiao Office, No. 1933 Hongqiao Road, opened in May 1926. (After the August 13 Incident, it was closed, and the business was merged into the Lusheng Office.) ）

West District, No. 230, Taixing Road, opened in March 1932.

North District Office, No. 556 Haining Road, opened in February 1932.

Huishan Institute, No. 244 Changyang Road, opened in August 1931.

Bixun Institute, No. 61 Fenyang Road, opened in August 1931.

Minti Ni Institute, No. 106, Yunnan South Road, opened in December 1931.

Fujian Institute, No. 460, Fujian Middle Road, opened in September 1931.

At present, the exchange equipment capacity of Huhai Telephone Company is 70,000 doors, and the number of users is nearly 60,000.

The Huhai Telephone Bureau, headquartered in Nanshi Huajie, has 7 bureaus, with an exchange equipment capacity of only 10,000 doors and more than 7,000 users.

The Japanese noticed the communication system in the metropolis of Shanghai more than a decade ago, when the telephone network was operated by the British-owned company Hotline. After some preparation and operation, they sent many students to Europe, including the young and intelligent Sadahide Ida.

In the 33rd year of the Republic of China (1934), when Ida Sadahide was about to return to China, he was notified that he wanted to transfer to Huhai and apply for the American Shanghai Telephone Company, which had taken over the telephone network, as a Chinese......

Wu Yusheng recalled that he was sure that he was not the only Japanese among the people who participated in the application at that time, but he did not know how many and how many were successful......

But one thing he was sure of was that he was the highest-ranking Japanese spy in the telephone company at the moment—because the incumbents above him were all Orthodox Americans!

This was noted by everyone: it is likely that there were other Japanese spies in the telephone company.

Wu Yusheng continued to introduce his situation, in five years, he visited all the bureaus of the telephone company, and because of his own efforts, he was valued by his superiors, until he was promoted to the deputy chief engineer of the company not long ago.

During this time, from the second year onwards, he continued to convey the information he had collected to the special personnel of the Intelligence Division of the Japanese Ministry of Foreign Affairs, who were in charge of contacting him, and later the Central China Liaison Department of the Koya Academy, and all this information was intercepted and eavesdropped by him using telecommunications technology.

In five years, also starting in the second year, he placed hundreds of jumpers, bypasses, transfers and other devices in the computer rooms and input and output cables of nine bureaus, which allowed him to monitor a certain area or a single telephone in a targeted manner......

In order to maintain secrecy, he did not install permanent devices on the lines of some important departments to avoid being detected by other professionals, and each time he temporarily carried them when necessary, and restored them immediately after obtaining information......

Hearing this, several people glanced at each other, and they couldn't help but secretly exclaim that they were lucky, if it weren't for that Akagi Qinzhi's request to continue monitoring, Wu Yusheng would have removed the listening device a long time ago! In that case, even a professional like Hoffen would not be able to detect an anomaly in the telephone line, and the matter would be headless!

Among the other three people present, Li Junhao listened and thought about how to use this Wu Yusheng;

Wang Renqiang thought: If the entire Shanghai Strait phone calls can be fully monitored, wouldn't it be possible to get almost all the important information?

Huo Fin directly asked the key question: "Wu Yusheng, if you need to monitor all the calls, do you need all the manpower?" ”

Hearing this, Wu Yusheng was stunned for a moment, then shook his head and said: "That's impossible, now Huhai has more than 65,000 phones, and the number of calls per day is more than 400,000 times, unless it is equipped with tens of thousands of manual monitors, it is impossible to monitor all calls!" ”

Yes? Wang Renqiang was first unhappy, and squirted: "Then you have been tossing for four years and setting up so many listening devices, what's the use?" ”

When it comes to professional matters, Wu Yusheng is very energetic, and immediately said: "Minister Wang, you can't say that, with the current technical conditions, it is completely impossible to monitor all calls, unless there is a machine that can filter out ordinary calls that do not involve intelligence......

Hey? Li Junhao's eyebrows were raised, this guy has Taoism! This kind of information filtering method is the application of the computer after the advent of later generations, and now we can realize this in 1939, and the level can be ah! Uh-huh, go on, he wants to hear more.

Hoffen came up with another idea: "If we divide the distribution of phones into fixed blocks and set block ringing, then the number of listeners can be greatly reduced, and only a few hundred people can monitor all the blocks......"

Wu Yusheng immediately added: "You can continue to subdivide, through the corroboration of other information, specific to the phone number, so that only dozens of people can be ......"

(End of chapter)