Shulou(Shulou.com)11/24 Report--

Everyone has his mobile phone, and he likes to use it to play games.

Alexander Bell, who invented the world's first available telephone, probably did not expect that the equipment he designed for long-distance calls was regarded by modern people as the main force of work and entertainment.

CPU frequency is getting higher and higher, taking pictures of more than 100 million pixels, more and more screen forms: folding screen, full screen. With the 5G network, a variety of cool techs has been used in mobile phones, including AR, VR and 5G live streaming.

Despite the high-tech blessings, the phone is used to "make" calls.

Do you have any other tricks on the phone? Let's have a look together.

① phone number if you want to make a call, you must have a phone number. We are all familiar with the 11-digit mobile phone number, which is in the following format:

Top three + last eight

The first three digits, from 130 to 199, represent different operators; the last eight are numbers assigned by operators, representing ourselves.

In order to facilitate memory, generally do not use the first 3 after 8 dial mode, many people use 353, 443 or 344 mode. When you make a phone call in China, the Chinese country code 86 is omitted by default. Plus the country code 86, it can be regarded as the 13-digit mobile phone number MSISDN in the world.

② prepaid and post-paid as the saying goes: food comes first when the army does not move.

You can't make a phone call until you have a phone bill.

At present, the most commonly used method is "prepaid", that is, charging the phone bill first and making a call later.

In the initial stage of the development of communication network, the most commonly used method is "post-payment", that is, make a phone call first and then pay the phone bill.

After the bill on the 1st-3rd of each month comes out, we need to pay last month's phone bill and pay as much as we make. The advantage of "post-payment" is that it can help enterprises avoid missing business opportunities due to arrears and downtime, but the disadvantage is that the phone bill is out of control and may receive a huge overrun bill.

The "post-payment" approach is actually the result of environmental and technological compromise:

In the initial stage, the cost of making phone calls is high, and the users who can afford to use the phone are generally enterprises, and the number is on the low side.

Technically, it is impossible to realize real-time billing, so we can only make a unified billing after summarizing the bill every month.

With the increase in the number of phone calls and the development of real-time billing technology, "prepaid" has now flown into the homes of ordinary people.

Whether it is post-payment or pre-payment, there is only a difference in the way of payment, and the two enjoy the same call service. Users such as enterprises and hospitals who have low tolerance for outages in arrears can choose to pay later, while users such as individuals who are highly sensitive to price can choose to pay in advance.

Insufficient ③ balance. If the phone bill is not enough, can I still make a phone call?

Of course the answer is: yes! Credit consumption phone, collect call, arrears reminder phone, credit loan phone to find out ~

3.1 according to our historical telephone charges, the credit consumer telephone operator allows us to continue to make calls when the balance is zero. At this time, the balance of phone charges can be negative.

When the balance of our phone bill reaches a certain amount (for example,-30 yuan,-50 yuan), the machine will stop.

3.2 collect calls in special cases, only need to dial a specific number, the party who answers the phone can pay the phone bill.

For example:

If you encounter an emergency when traveling abroad, you can call the embassy hotline for help.

If you want to make an international call at home, you can use a "collect call". After receiving an incoming call, the party who answers the phone will first hear a voice prompt, indicating that this is a phone call that needs to be paid for by himself. The party who answers the phone can decide whether to answer or refuse to answer.

3.3 in the case that the arrears reminder phone is in arrears, although the phone cannot be connected, other users can still be contacted through the arrears reminder phone.

User A dials the number of user B. after receiving the signal, the core network finds that user An is in arrears and will hang up the phone.

When the core network finds that user A can use the arrears reminder phone, it will send a text message to user B.

After seeing the text message, user B will know that user A called, but could not get through due to arrears. User B can decide whether to return the call or not.

3.4 you can also make a call if you are in arrears with the credit line. Using a credit phone, you can borrow a phone bill from the operator to complete the call.

In general, the operator will set a maximum phone bill and repayment date that can be borrowed. Users can borrow phone charges from operators many times until they reach the maximum available phone charges or when they reach the deadline for repayment, they must repay the borrowed phone charges and a certain amount of service charges.

④ short number some people say that every time you make a call, you have to dial 11 digits. I'm so tired. Can you dial a three-digit or four-digit number?

Of course the answer is: yes! Learn about virtual private network phone and affection network phone.

4.1 Enterprises with a relatively large scale of virtual private network phones can create a virtual group, and each member of the group will get a short number, usually 3 ~ 5 digits.

When members of the group make phone calls, they can make a successful call without dialing an 11-digit long number but directly dialing a short number.

4.2 Love net phone can also be used to dial a short number within the family. Generally speaking, a "kinship network" is set up by one person, and the cost of organizing the network is borne by this person.

A family network can contain more than a dozen relatives and friends. Each member gets a three-digit number, which can be 520, 521, 522, which have a special meaning.

Members can make a successful call by dialing a three-digit short number, and the call is generally free of charge.

See here, Watson, you must have found a blind spot. Yes, the pro-network phone is actually a small version of the virtual private network phone.

⑤ Free number although it is said that there is no free lunch in the world, but I would also like to ask: can I make a free phone call?

Of course the answer is: yes! 800A400 service phone number, emergency call number to find out ~

We, who shop online every day on the 5.1 800x400 service phone, will always encounter the need for after-sales support. There is no need to pay telephone charges for 800 calls of enterprises through landlines and 400 calls of enterprises through mobile phones, and the telephone charges generated by calls are borne by enterprises.

The enterprise provides a unified marketing channel and after-sales channel through 800thumb 400 telephone, and transfers the call to different mobile phones and landlines internally.

5.2 Emergency call in case of traffic danger, fire and other emergency situations, you can call an emergency call for help. 122, 110, 119, 120, all can be dialed free of charge.

Even if the phone is in arrears, the phone screen is locked, and the phone does not have a SIM card, as long as there is a signal, you can call these emergency calls.

⑥ regional discount phones are all phone calls, can you enjoy VIP treatment?

Of course the answer is: yes! Regional discount phone number to find out ~

If you make a phone call in a residential area or a building, you can enjoy the VIP treatment through the regional preferential phone: there is a discount on the phone call, and the phone bill is more economical.

Operators can load billing schemes that are different from others in some base stations to provide dynamic discounts for users within the coverage of these base stations:

When there are few people, the discount on the phone bill is higher, and it will be cheaper to make a phone call.

When there are a large number of people, the discount on the phone bill will be reduced, but it will certainly be cheaper than the usual phone bill, and the phone call will also save money.

Witty you must have seen through: VIP is just his protective color, he just likes to make phone calls.

⑦ other play 7.1 one card double number a mobile phone, in fact, you can also dial a card double number phone. Hey, what's the experience of having a mobile phone number and a fixed phone number at the same time? That must feel good.

In the designated area, you can use any number you want to make or answer the phone.

Outside the designated area, all incoming calls are called to the mobile phone number by the operator to ensure that the call is not missed.

7.2 call transfer there are always times when we "want to be quiet" and "don't want to be disturbed". In this case, if the phone is muted or turned off, we may miss important calls. Then make a call transfer phone and transfer all incoming calls to another number, including:

Unconditional forward: our cell phones will not ring, direct transfer.

Forward when busy: when we are on the phone, all calls will be transferred.

Forward No answer: when we do not answer the call after ringing, the call will be transferred.

Warning: another number that can answer incoming calls must be one of your own.

7.3 leakage reminder that if there is no signal and when the phone is turned off, all incoming calls cannot be connected. And after the signal is restored or turned on, there is no hint. In order to miss the call, we can use leakage reminder calls to record those missed calls.

When user A calls user B, the core network sends a text message to user B.

When user B can get through, the core network sends a text message to user A

7.4 Virtual number can be used as a temporary contact information when taking a taxi and ordering takeout.

The virtual number is only valid for the current itinerary or time period. Once the trip is over or the time is up, it is impossible to dial this virtual number.

In this way, we keep in touch during the trip and break off at the end of the trip, protecting our real number.

This article comes from the official account of Wechat: ZTE documents (ID:ztedoc)

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