Mobile Terminal Callback Debit Card Service Automation

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Solution Overview

Problem

The existing debit card service for mobile terminal users faces challenges due to secondary charging issues and cumbersome operation, limiting its popularity, as users must pay for both the call and the access code, and current callback methods are not user-friendly.

Innovation Solution

A method and system that utilize an automatic dialing function on mobile terminals to dial a preset callback access code, triggering a call to the debit card service platform, which then calls back the terminal, allowing seamless continuation of the call without additional user input, supported through hardware, application program, or firmware modes, and enabling binding and billing management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the mobile terminal user dials the debit card access code to use ordinary debit card service, then the user can access the debit card service, but the user needs to pay secondary charging for both the call and the access code

Engineering Contradiction:
Improvedebit card service accessibilityVSAvoidsecondary charging cost
Core Design Contradiction:
Ease of operationVSLoss of energy

Solution Approach 1:

The patent inverts the traditional calling model by implementing a callback mechanism. Instead of the service platform calling the user, the user's mobile terminal automatically dials a preset callback access code, triggering the service platform to release the call and call back the terminal. This inversion eliminates secondary charging because the callback call is released by the service platform, not charged to the user's mobile account.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The patent implements self-service through automatic dialing functionality. The mobile terminal automatically dials the callback access code without requiring manual user input, and the service platform automatically manages the call release and callback process. This automation eliminates the need for users to manually manage call connections while avoiding secondary charging.

Inventive Principle:
Principle #25Self-service

2Loss of energy

If the service platform releases the call and calls back the terminal using conventional callback method, then the secondary charging problem is solved, but the operation becomes cumbersome and user experience is unfriendly

Engineering Contradiction:
Improvesecondary charging avoidanceVSAvoiduser operation convenience
Core Design Contradiction:
Loss of energyVSEase of operation

Solution Approach 1:

The patent applies preliminary action by pre-configuring the callback access code in the mobile terminal's automatic dialing function unit before the user needs to use the service. The user only needs to input the called number, and the system automatically handles the callback access code dialing and call management in advance, eliminating cumbersome manual operations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The automatic dialing function unit in the mobile terminal performs self-service by automatically dialing the preset callback access code and managing the call connection without requiring user intervention. The service platform also performs self-service by automatically releasing the call and initiating the callback, creating a seamless user experience.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If different service platforms are established for hardware callback and conventional callback methods, then both methods can be supported, but the cost for the operator becomes too high

Engineering Contradiction:
Improvecallback method supportVSAvoidservice platform establishment cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent implements universality by designing a single debit card service platform that can handle both conventional callback requests and automatic dialing callback requests through the same callback interface. The service platform releases calls and initiates callbacks uniformly regardless of the triggering method, eliminating the need for separate service platforms and reducing operator costs.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP2493219B1Method, mobile terminal, service platform and system for implementing debit card service
Publication Date: 2016.04.20 ZTE CORP
  • EP2493219B1 patent drawingFigure 1
  • EP2493219B1 patent drawingFigure 2
  • EP2493219B1 patent drawingFigure 3

AI summary

A method and system for implementing debit card service based on callback. The method is applied to a mobile terminal set with an automatic dialing function unit, automatic dialing function of the automatic dialing function unit is activated, and a number corresponding to the mobile terminal is bound with one debit card. The method includes the following steps: a preset callback access number is dialed before the called number by the automatic dialing function unit in the mobile terminal to connect the call to a debit card service platform when the mobile terminal calls the called number; the debit card service platform releases the call and calls back the mobile terminal; the called number is continued by the debit card service platform after the mobile terminal answers the callback; the debit card service based on callback is implemented. The method and system can support two callback modes, based on the hardware and the software synchronously, to overcome the secondary charging problem in the debit card service and improve the user experience.