Also known as an integrated circuit card, it is a plastic card that is the same size as a magnetic card, but
thicker and harder than a magnetic card. On the front of the card you can see a small piece of metal, and underneath the metal
is a semiconductor chip. This chip can be either memory or a
microprocessor (CPU). IC cards with memory are also known as memory cards, and IC cards with a
CPU are also known as smart cards or CPUs.
The IC
Public Payphone Card (also known as IC card by convention)
Business Functions
How can I dial a special service number?
When you pick up the IC card phone, you can hear the dial tone. If you want to dial 119.
110.112 and other special service numbers, you can dial them after you pick up the phone and hear the dial tone.
Volume control
If the volume of the receiver is not enough during a call, you can adjust it by pressing the "Volume Up"
There are three levels of volume control on the IC card phone.
Replacement of the card without interrupting the call
When you make a payphone call, if the remaining amount on the card is not enough for a single call
, the phone will beep about 30 seconds in advance. If you don't want to interrupt the call, press the "Change Card" button and replace the old card with a new one. Note: Be sure to press the "Change Card" button to ensure that your call is not interrupted.
Continuing a call
When you have finished making a call and want to make another call, you can press the
"Continuing" key or tap the fork spring, and when you hear the dial tone, you can continue to make the call.
Using Methods
The appearance of the IC card phone and the magnetic card phone is not much different, and the using method is also roughly
same, take off the phone→insert the IC card→dialing→talking.
Currently we use a variety of IC cards in our daily lives, IC card in the end what kind of things? What is its use? What are its types? What will be its future? This article on these issues for a brief introduction.
First, what is the IC card
IC card is the meaning of the integrated circuit card, IC card is a large-scale integrated circuits within the plastic card, its size and the size of the original magnetic card phone magnetic card.
IC card can usually be divided into memory cards, encryption cards and smart cards of three categories, memory cards can be directly read, write operations on the memory, encryption card is based on the memory card to increase the read, write encryption, encryption card operations, you must first check the card in the card password, the password is correct in order to carry out the normal operation of the smart card is with a microprocessor (CPU), and is also known as the CPU card.
Second, the characteristics of the IC card
1. High reliability
IC card is read, write the contact head of the device and the card on the integrated circuit of the contact point of the contact contact for information reading, writing, read-write does not have any moving parts, simple and reliable, the IC card has a strong ability to resist interference, anti-magnetic and anti-static. And so on.
2. Good security
IC card from production to put into use the whole process and the whole life cycle can be strictly managed, so good security. IC card using information authentication code (MAC), in the recognition of the card, by the card number, effective date and other important data and a key to calculate the verification according to a certain algorithm. IC card can provide key personal identification (PIN) code. Users use, enter the password, and the PIN code for comparison, to prevent illegal users.
3. Flexibility
IC card itself can be security authentication, operating authority authentication, and can store the latest information about the transaction processing, can be offline operation, simplify the network requirements. IC card can be a card multi-purpose. IC card for the user to provide convenience: such as for the user to modify the PIN code, personal data, consumption rights, and query the balance, etc. These functions are reflected in the IC card, the user's personal identification (PIN) code. All these functions reflect the flexibility of the IC card.
Third, the application of IC card in the telecommunications industry
1. Public IC card phone
IC phone card is the fastest growing IC card application, the use of the most countries and regions of a kind of IC card. As coin-operated telephones have to clean up the money box and handle a large number of coins, the work is tedious, and lawbreakers will steal coins and even destroy the telephone. Due to the magnetic card phone security is low, magnetic card is easy to be copied and imitation, and the phone failure is more. IC card phone safety and reliability, easy to operate, telecom operators are happy to launch, the majority of users like to use. So the IC card machine was introduced to develop very quickly, and gradually take instead of coin-operated machines and magnetic card machines, our country's change is particularly large, and now there are fewer and fewer coin-operated machines and magnetic card machines on the street.
2. Subscriber Identification Mode Smart Card (SIM card)
Due to the small size of the SIM card, low power consumption, high security, at the same time can be confirmed by the cardholder himself, and thus become the GSM digital cell phone system in the management of the user's card. When a user makes an outgoing call or an incoming call from a SIM card-equipped cell phone, the call charges are credited to the SIM card's storage area according to a unique number. The prepaid cell phone users prepaid stored in the SIM card, can also be automatically deducted according to the cost of each call. SIM card can also provide cell phone users with certain number of call restrictions, incoming call number display, call the number of times the cumulative display as well as short message display and other functions.
The SIM card plays an important role in the cell phone handset, through the user to confirm and data encryption, SIM card effectively prevents a variety of fraudulent behavior, its PIN code can also protect the user not to be stolen, enhance the communication of the personalized. SIM card standards can be made like the GSM digital cell phone system of the manufacturers of the equipment is compatible with each other, so that the user a SIM card in the hands of any manufacturer's mobile phone use can be inserted in any manufacturer's mobile phone. The SIM card standard can make the GSM digital mobile phone system of various manufacturers of equipment compatible with each other, so that the user a SIM card in hand, can be inserted in any one of the manufacturers of cell phone use.
3. SIM card (electronic wallet)
At present, various banks and post offices issued a variety of financial cards belong to the financial cash IC card, financial cards can be in the ATM (automated teller machine) on the deposit and withdrawal, but also in the shopping malls and other places of shopping and consumption use. In this way, banks and financial institutions can reduce currency circulation and prevent counterfeit money, and for users, e-wallets are easy to carry, safe and reliable, simple payment, very popular with users.
Fourth, a card multi-purpose IC card
IC card in addition to for telephone cards, SIM cards and financial cards, but also widely used in other industries, such as transportation, tourism, education, health care and identification and other aspects. However, with the development of the economy, all walks of life issued more and more IC cards, people hold the card is also increased, if the many cards are carried on the body, and may become a new burden on people, IC card can be a card for multiple uses? It can be said with certainty that the IC card can be used for multiple purposes.
In October 1993, China launched the Golden Card project is to solve a variety of IC card management and application, card and card interoperability between the interconnections, a card multi-use cross-industry, cross-system social engineering.
There are usually two ways to use one card for multiple purposes: one is to load multiple applications on one IC card, and the other is to use the information on one IC card in multiple places. According to the situation in our country, the former kind of way is more feasible.
A card for multiple uses in addition to technical issues, the more complex is the management and coordination issues, such as an IC card in the many applications, which application is the main one? Which application component is the main one? How to allocate benefits among various applications? How to coordinate standards and specifications between different industries, etc., in a word, "Who is the big boss?"
A card for multiple uses in the same industry within the use of relatively easy to achieve, for example, Shanghai's cabs, metro, ferries, universal transportation card, which can also be used off-site with Wuxi's bus card, which is a successful application. However, it is difficult to apply between different industries.
A card must be used according to the actual needs of the card, to be realistic to promote, can not be too hasty, a card does not require a card card everything, not a card all use. Generally speaking, people can often use several kinds of IC card first to realize a card multi-purpose.
IC card is the rapid development of IC card market prospects. But in order to reduce the number of cards in people's pockets, convenient for people to use, the IC card is to the time to solve the problem of multiple use of IC cards.