Unstructured Supplementary Service Data (USSD) is a protocol used by GSM cellphones to communicate with their service provider’s computers. USSD can be . Unstructured Supplementary Service Data (USSD), sometimes referred to as ” Quick Codes” or USSD can be used to provide independent calling services such as a callback service (to . GSM (ETSI EN , V) Specification (USSD) Stage 3 – 3GPP; USSD Technology and packet flow in GSM network. USSD Call FLowThere are two types of USSD — 1. Network Initiated – Push Mode 2. User Initiated – Pull Mod.

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It presents information and guidance but does not support a specific plan of action, which would require additional information and insights into each situation. Moreover, the call needs to be monitored during the conversation period, in real time, to avoid a negative balance. Retrieved 11 May This page was last edited on 9 Septemberat With growing competition in the telecom industry, operators must be diligent in how they price both new and existing services.

You are commenting using your Twitter account. Retrieved 10 May Using the latest USSD technology, the operator can float new services and various applications at much cheaper rates while enhancing operational efficiency and generating incremental revenues by delivering practical value to the prepaid customer base.

Prepaid Roaming Using USSD Callback (Roaming Implementation for Prepaid) Part 1

Mobile banking brings new opportunities and new horizons, but also comes with implicit risks to financial providers, carriers, and the financial system. To find out more, including how to control cookies, see here: The application server implementation is vendor dependent. Figure 2 explains the elements of the mobile network and the communication protocols they use.

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Critical Review Of Security Options For Mobile Banking Mobile banking brings new opportunities and new horizons, but also comes with implicit risks to financial providers, carriers, and the financial system.

There was no session held between the handset and cqll application; it was just like SMS service. Taking early disease-prevention measures, educating people about their symptoms, providing anonymous counseling, gathering data, linking patients to services, and many other such acts can go a long way in cakl the health of developing nations.

For floq USSD request with the application mode, the MS passes the message to the corresponding application and sends back the response. This operation could be a request to get certain information or a notification. This means the handset and the USSD application can now have the technical equivalent of a dialogue. Prepaid recharge even while roaming through registered credit card 8. However, the churn rate is very high, and gaining the loyalty of prepaid subscribers poses a great challenge for mobile uussd.

You are commenting using your WordPress. USSD has several advantages as a bearer technology, such as:. Currently, most of the prepaid roaming implementations utilize the capabilities provided by:. The process unstructured SS request message contains the following parameters: The contents of a string sent by the MS are interpreted as given in Table However, not all of these channels are accessible to everyone; hence, using cell phones to reach the masses seems an obvious extension.

This indicates that the requested task could not be completed because of a problem in another entity. Even though the resources signaling channel, etc. As no credit checks are requiredsigning a prepaid service is a simple and hassle-free process for new subscribers.


This string contains operator-determined information that is relevant to the user.

Some operators use USSD to provide access to real-time updates from social-networking websites like Facebook and Twitter. Today, USSD offers a competitive market for creating revolutionary network service.

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It works on almost all GSM mobile phones from old handsets to new smartphones With USSD, messages can even be initiated during calls, allowing simultaneous voice and data communication.

Conversely, roaming subscribers from other networks cannot access USSD services on a host network.

This kind of service can both generate a lot of revenue for the operator and help mobile manufacturers service their customers with updated software. To profitably grow in this segment, service providers need to embrace clow business model that focuses on maximizing the use of existing network assets while reducing operational expenses via streamlined, cost-efficient processes.

This indicates that the receiving entity does not support the alphabet indicated in the USSD operation. Please log in using one of these methods to post your comment: But the addition of a new channel also brings new operational risks to providers, just as the introduction of internet banking posed the risks a decade ago. It binds the third-party interfaces e. If yes, then, knowingly or unknowingly, you have already been using USSD service.