Unstructured Supplementary Service Data (USSD) is a new type of interactive data service based on GSM network. When you use the phone keypad to enter some pre-defined numbers or symbols such as *#, etc., press send, which is the dialing button, to send an instruction to the network. The network chooses the service you need according to your instructions.
Compared with short message, GPRS and WAP, its feasibility and advantages in industrial applications, and the wireless remote monitoring system successfully operated by CLP in Urumqi as an example, the system structure of USSD in industrial applications is described. , interface protocols and communication processes.
Unstructured Supplementary Data Service General Packet Radio Service Service Provider China Mobile's Unstructured Supplementary Service Data (USSD) is a real-time online system based on the Global System for Mobile CommunicaTIs (GSM) network. The new interactive session data service; it is based on the subscriber identification module SIM (Subscriber IdenTIty Module) card, and uses the signaling channel of the GSM network to transmit data. It is a new service launched on the basis of the GSM short message system technology, in terms of business development. The ability is much stronger than the SMS system.
USSD technology alone or in combination with short message technology and General Packet Radio Service (GPRS) technology can provide customers with a wide range of value-added services, such as mobile banking, financial stock trading, mobile phone billing, weather forecasting. And inquiries, emails, flight inquiries, online bookings, polls, etc. The USSD has a small impact on the original system structure, and the operator can flexibly launch functional services for the specific conditions of the local network to conveniently provide various types of data services for mobile users. In addition, USSD can be used not only for some information services but also for mobile services. The communication network provided by operators can also be applied to the industrial range. The application of USSD can greatly expand the scope of industrial monitoring communication, enhance functions and reduce costs. Therefore, this service has been widely used in Hong Kong SAR, Singapore and other countries and regions. Applications also have broad application prospects in China.
First, can provide comprehensive, interactive information services data services!
Second, the scope of users: Inner Mongolia Mobile Global Communications, M-Zone and other non-standard Shenzhouxing users.
Third, the use of USSD business does not need to apply in advance.
Fourth, open business:
1, *108#, call fee inquiry
2, * 101 #, integrated channel and make corresponding adjustments according to business development.
5. How is the USSD service charged? The tariff for the USSD business is charged based on the communication fee + information fee.
1. Communication fee: per-time billing, once every three minutes, 0.1 yuan / time, less than three minutes, charged in three minutes; more than three minutes.
2. Subject to change, the local business office, 1860 or business tips.
6. Applicable mobile phones and methods of use: At present, most mobile phones support direct on-demand mode and English menu mode.
The general operator has its own USSD code. You must first call the operator to ask if they support the USSD code, such as whether to support the USSD code to check the phone bill (for example, after sending *101#, the network will return your balance information). To support USSD, there are three conditions: 1. The terminal device needs to support (that is, your mobile phone) 2. The SIM card supports. The SIM card has a list of supported services. The EFust file contains fields that support USSD. 3. The network needs to support it. You must have a USSD server.
How to cancel the ussd code to runIf you are running USSD code during a mobile phone call, it may be due to the use of speed dial or Lenovo address book abnormality, USSD code is usually the password we often say, display the information and implementation with *#, combination of numbers Some functions, in view of your situation, it is recommended that you first try to restart the battery after disassembling the battery and check whether the problem exists. If it still exists, you can click System Settings - Application - All, find the Lenovo address book, click Review the details and select Clear data before trying.
If the fault persists, it is recommended that you try to use the factory reset settings, you can find the appropriate options through the system settings - backup and reset. Since the factory reset will clear the original data information, it is recommended that you back up first, you can use the music synchronization to synchronize the cloud, or you can use the music assistant to back up the data on the computer.
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