Multi-SIM Call Shielding via Remote Management
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Solution Overview
Problem
In multi-SIM eSIM technologies, calls are often answered by mistake due to the management device and managed device sharing the same MSISDN, leading to incorrect handling of incoming calls, especially when used by different users.
Innovation Solution
Implementing an incoming call shielding method on the managed device, where the device parses call information and skips responding to incoming calls based on a remote management instruction from an entitlement server, ensuring only the management device handles calls by setting up call shielding on communications subunits corresponding to specific profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the management device and managed device share the same MSISDN to enable multi-SIM service, then the multi-SIM service functionality is improved, but incoming calls may be answered by mistake when different users operate the devices
Solution Approach 1:
The patent segments the call handling function by introducing an incoming call shielding mechanism that divides call routing between management device and managed device. The shielding mechanism segments the incoming call flow so that calls are directed to the management device while the managed device shields itself from answering calls, thus resolving the contradiction between multi-SIM functionality and call answering accuracy
Solution Approach 2:
The patent introduces an intermediary shielding mechanism that mediates between the shared MSISDN and the call answering process. The shielding function acts as an intermediary layer that receives the incoming call and directs it to the appropriate device (management device), preventing the managed device from mistakenly answering calls while maintaining the shared MSISDN for multi-SIM service
2Speed
If the managed device responds to incoming calls first, then the call can be answered quickly, but the management device cannot establish the call with the calling terminal
Solution Approach 1:
The patent applies preliminary action by pre-configuring the managed device with an incoming call shielding setting before calls are received. This shielding configuration is established in advance through remote management instructions, ensuring that when incoming calls arrive, the managed device automatically shields itself and allows the management device to establish the call correctly, thus preventing call establishment errors while maintaining quick response
3Reliability
If the managed device shields all incoming calls, then call answering mistakes are prevented, but data services and other communications are affected
Solution Approach 1:
The patent applies local quality by making the incoming call shielding setting specific to the communications subunit and profile rather than applying it globally to all communications. The shielding is locally applied only to the voice call function of the managed device, while data services and other communications remain unaffected, thus resolving the contradiction between call answering accuracy and communication service availability
Data Source
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AI summary
This application provides a multi-SIM call management method and apparatus, a managed device, and a server, and relates to the field of eSIM technologies, to resolve a problem that a call is answered by mistake. The method includes: parsing, by the managed device, an incoming call to obtain call information, determining a communications subunit corresponding to a called identifier, and if the managed device has performed an incoming call shielding setting on the communications subunit in response to a remote management instruction sent by an ES, skipping responding, by the managed device, to an incoming call event; or receiving, by the server, a remote management instruction sent by an ES, and deleting or freezing routing information corresponding to an identifier in response to the remote management instruction, so that a communications subunit corresponding to the identifier in the managed device cannot respond to an incoming call event. This application is applicable to a multi-SIM call management process.