MSISDN Validation via Service Management Platform
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Solution Overview
Problem
Existing mobile communication systems face challenges in maintaining accurate Mobile Subscriber Integrated Digital Services Network (MSISDN) identities, particularly due to issues with invalid or missing MSISDNs on SIM cards, which affect fixed-mobile convergence and user authentication.
Innovation Solution
The technology employs a Service Management Platform (SMP) client on mobile devices to detect and correct invalid MSISDNs by disabling calling line identification restrictions, contacting the SMP, and updating the SIM card with the correct MSISDN through various methods such as SMS or USSD commands, ensuring seamless communication and user authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If MSISDN is stored on SIM card during manufacturing, then initial identity assignment is simple, but invalid or missing MSISDNs cause authentication failures and communication errors
Solution Approach 1:
The system performs preliminary validation of MSISDN before it becomes operational. When a SIM card is inserted, the mobile device checks whether the MSISDN stored on the SIM card is valid by attempting communication or verification procedures. If the MSISDN is found to be invalid or missing, the system proactively initiates correction procedures before normal communication operations begin, preventing authentication failures and communication errors.
Solution Approach 2:
The system implements a feedback mechanism where the mobile device continuously monitors the validity of the MSISDN stored on the SIM card. When communication attempts reveal that the MSISDN is invalid (e.g., calls failing to connect, authentication rejected), the system receives feedback about the invalidity and automatically triggers corrective actions to obtain and install a valid MSISDN from the network operator.
2Ease of operation
If MSISDN correction is performed automatically, then user experience is improved, but additional network communication steps are required
Solution Approach 1:
The system enables self-service correction of invalid MSISDN without requiring user intervention. When an invalid MSISDN is detected, the mobile device automatically initiates communication with the network operator's server, receives the correct MSISDN, and updates the SIM card autonomously. The user is informed of the correction but does not need to manually contact customer service or perform configuration changes, significantly improving ease of operation.
Solution Approach 2:
The system performs MSISDN validation and correction during initial SIM card insertion or before first use, rather than waiting for communication failures to occur. By proactively checking and correcting MSISDN validity in advance, the system minimizes the time users would otherwise experience communication disruptions and reduces the overall correction process time.
3Difficulty of detecting and measuring
If calling line identification restriction is disabled to detect MSISDN, then MSISDN detection capability is improved, but communication security is reduced
Solution Approach 1:
The system temporarily disables calling line identification restriction only for the specific purpose of detecting and validating the MSISDN on the SIM card, and only during the initial setup or correction phase. Once the MSISDN validation is complete and confirmed valid, the system re-enables the restriction to restore normal communication security. This preliminary anti-action approach allows necessary detection capability while minimizing security exposure to a brief, controlled period.
Solution Approach 2:
The system uses the network operator's server as an intermediary to verify MSISDN validity rather than relying solely on local detection. The mobile device communicates with the operator's authentication server, which validates whether the MSISDN is properly registered and active in the network. This intermediary verification mechanism allows effective MSISDN detection while maintaining security, as the actual validation is performed by a trusted network authority rather than by disabling security restrictions.
Data Source
AI summary
The disclosure addresses technology for identifying a mobile subscriber integrated services digital network number (MSISDN) of a mobile communication device in an extended enterprise voice network comprising the mobile device, an enterprise server, a private branch exchange (PBX), and a service management platform (SMP). The need to determine an MSISDN is detected. At least one of disable calling line identification restriction at the mobile communication device, and enable calling line identification restriction override at the SMP is implemented. The SMP is contacted from the mobile communication device. The incoming contact is identified at the SMP. The MSISDN is transmitted to the mobile device from the SMP. The transmitted MSISDN is written to the SIM card.