After speaking, he glared at Jiang Xinwei again, and muttered, "It's not that the fees charged by your post and telecommunications bureau are too high?"

The woman was at a loss and said anxiously: "What can I do, what can I do here......"

Jiang Xinwei realized that he was wrong to blame the other party.

Nowadays, telephones are really expensive, and except for a very small number of families who have become rich first, they are generally only available in units.

Even if there are telephones, both the workplace and the family treat them as treasures, and many people buy an iron box or a strong wooden box to lock them up.

Unless there is something particularly important, the lock of the box is opened with a key so that a call can be made.

It's not that people are stingy, it's just that the cost of installing a telephone is too high, and the cost of a telephone is too expensive: the initial installation fee for installing a telephone is 4,000. 4,000 yuan is absolutely astronomical for an ordinary worker, because the monthly salary of urban workers is less than 100 yuan! Not to mention a temporary worker like Jiang Xinwei, who can only install a telephone after 10 years without eating or drinking.

How expensive is it? Long-distance calls with zero prefix are at least one yuan and two cents per minute, and local calls are three cents every three minutes, and the billing time is calculated on the basis of one minute or three minutes, and if it is less than one minute or three minutes, even if it is only one second more, it is also calculated as one minute or three minutes.

Jiang Xinwei's salary of forty-two yuan is not enough to talk for half an hour, who dares not to be cautious?

It is precisely because of the high cost of the phone and the small number of telephones that the telephone is very precious, and people naturally have a sense of superiority and awe for it, and neither adults nor children dare to touch them at will.

However, Jiang Xinwei, who crossed over, did not belong to the awe-inspiring people, so he only heard him say: "You don't need to pick the lock, I can help you get through the phone." ”

The two were stunned for a moment, and Uncle Qin asked in surprise: "You said you can get through the phone?"

Seeing Jiang Xinwei nodding, the old man said with a straight face: "You can't dismantle the telephone, this new machine was bought by our unit for more than 70 yuan, and no one can afford to pay for it." It's okay to get through, but if you can't get through, you'll kill me. ”

When the woman heard this, she thought that the young man was about to disassemble the telephone as soon as she was excited, but her heart, which had just warmed up, suddenly became half cold, and she said hesitantly: "Have you ever taken it apart before......?" If not, don't ......"

Nowadays, people believe that public property is sacred, and they worry about whether they will damage the telephone in vain when people's lives are at stake.

Jiang Xinwei said very calmly: "You guys are wrong, I just said that you don't need to open the lock, let alone open it." I'm just going to do a little trick. ”

"Is it possible?" Uncle Qin still didn't believe it.

Jiang Xinwei nodded and bragged: "Of course, I'm from the Post and Telecommunications Bureau, how can I not solve such a small problem?"

Uncle Qin said sarcastically: "What's so great about the post and telecommunications bureau? Can the post and telecommunications bureau open two locks? Besides, you've only been at the post and telecommunications bureau for a few days?"

Jiang Xinxu smiled confidently and said, "Don't waste time, take me to the office." ”

"You don't lie to me?" Uncle Qin still didn't believe it in his heart, but his feet still moved, and asked, "Jiang Yanzi, if you don't unlock the phone, you can get through the phone, so why does the unit lock the phone?"

Jiang Xinwei bragged: "This is the secret of the Post and Telecommunications Bureau. …… Isn't human life at stake now? I had to make an exception once. ”

Uncle Qin was skeptical, but he quickly walked towards the gray cement building in the courtyard with him and the woman who was warm-hearted.

Uncle Qin took them to the office.

When he took out the key to open the door, he couldn't help but instruct: "Jiang Yanzi, I have something to say first, if the telephone is broken, you will have to lose money." If you just run away, I'll go to Shiqiao Town to ask your father for it. Jiang Langzhong has always had a good reputation, don't you fool him, you know?"

Jiang Xinxu smiled: "I know." Uncle Qin, don't worry, I dare to take this porcelain job without this diamond?"

"It's good to know. Uncle Qin pushed the door open and said, "Let's go in." I'll see how you cast spells. ”

Jiang Xinwei saw the white button telephone locked in the tin box on the desk, smiled, and said to the woman who was suffering from gains and losses: "You give me the phone number." ”

The woman took out a crumpled note from her pocket, handed it to him carefully, and asked suspiciously: "Is there really no need to disassemble the telephone?" My man's name is Lu Guohai, director of the design office of the Municipal Construction Engineering Bureau. ”

Glancing at the number on the paper, Jiang Xinwei returned the paper to the woman and went to pick up the microphone of the telephone.

The woman was surprised and asked, "Do you remember this number?"

Jiang Xinwei said lightly: "This number is simple and easy to remember." ”

Now the phone number is only five digits, and the long-distance area code of Zi'an City does not need to be remembered at all, he naturally remembers it at a glance.

After speaking, he picked up the only exposed telephone microphone from the iron box with his left hand, stretched out his index finger with his right hand, and then knocked lightly on the fork spring of the telephone: "Bang! Bang! Bang! Bang......"

Uncle Qin and the women looked at him dumbfounded, although they were suspicious in their hearts, but seeing Jiang Xinwei's confident look, they didn't speak, just watched quietly.

About a minute later, Jiang Xinwei asked loudly into the microphone of the telephone: "Hey, is it the Zi'an City Construction Engineering Bureau?" Hello, I'm looking for Director Lu Guohai Lu of the design office, yes...... Oh, well, we're waiting here, thank you. ”

As he spoke, he handed the microphone to the woman whose face was flushed with excitement: "Here! The other party will help you shout, wait a while." ”

Uncle Qin looked at him with admiration, pulled him aside, lowered his voice and asked, "Jiang Yanzi, what's going on?...... Why are the two locks useless?"

Jiang Xinwei smiled and said, "This is a secret of the Post and Telecommunications Bureau, and it can't be leaked casually." ”

Uncle Qin nodded hurriedly and said, "That's, that's, this method really can't be leaked." ”

Jiang Xinwei looked at Uncle Qin's solemn appearance, and couldn't help but feel ashamed for a while, feeling that he was bullying an honest man. His hand seems to be very bullish, but in fact, it is worthless:

The telephone must be connected to the switch in order to make a call, and the switch can receive the phone number sent by the telephone in two ways: one is the audio mode and the other is the pulse mode.

Telephones with buttons are all audio methods, that is, the buttons on the outside of the telephone are connected to the internal audio generator. You press a button on the telephone, and the internal audio generator sends a signal composed of two frequencies to the switch of the post and telecommunications office, and the switch knows what number you are pressing according to this signal, and it also knows the number you dialed.

The pulse method takes the pulse signal, and the previous dial type telephone used the pulse signal to send the phone number. The term "pulse signal" is a bit of a lofty word, but it's actually as simple as making the circuit turn on and off. As long as you have the ability to make the phone line go on and off, you can send a phone number to the switch, and you can get the call.

Just now, Jiang Xinwei picked up the microphone of the telephone and slapped the fork spring on the telephone with his hand, which was actually to make the telephone line pass through and break it, that is, to send pulse signals manually: when the finger slapped the fork spring, the line was broken, and when the fork spring line was released, it became open again.

You can shoot a few pulses if you want to send a number, except for 0, because 0 is ten pulses instead of zero. As long as you tap the fork spring gently and continuously, anyone can get through the phone.

Note: The fork spring is the thing that can be pressed and automatically bounced up in the card slot of the telephone microphone.

(Off topic: If someone wants to give it a try with their home phone, pay a little attention to the rhythm of the tapping, three to four times per second, pause for more than half a second to a second after a number is tapped, and then tap the next number.) 360 degree bow to collect!

For mobile phone users, please go to M. to read.