Global Multiline Roaming via Single SIM and Local Number Provisioning
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Solution Overview
Problem
Global communication users face challenges in maintaining efficient and cost-effective communication while traveling, as international roaming services are often expensive and inconvenient, requiring multiple SIMs or devices to manage complex routing and billing across different networks.
Innovation Solution
A system that provides a global roaming multiline service, allowing a single SIM or device to appear local in multiple countries by provisioning multiple local service accounts, enabling seamless communication with a single device and reducing international roaming charges through intelligent routing and registration across networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If users use traditional international roaming services to maintain communication while traveling, then communication connectivity is maintained, but roaming costs become expensive and billing becomes complex
Solution Approach 1:
The system segments the traditional single-roaming-agreement model into multiple independent local service accounts, each associated with a different country or region. Users can be provisioned with multiple MSISDNs (phone numbers) from different service providers, allowing them to segment their communication routes by destination, thereby reducing roaming costs while maintaining connectivity.
Solution Approach 2:
The system creates a universal communication framework where a single user profile can access multiple service accounts across different networks and countries. The user can universally communicate from any location using the appropriate local number, making the system adaptable to any destination without requiring separate devices or complex manual configurations.
2Productivity
If users employ multiple SIMs or devices to manage communication across different networks, then communication efficiency improves, but device complexity and management burden increase
Solution Approach 1:
The system merges multiple service accounts and MSISDNs into a single user profile managed by one device. The home network acts as a consolidation point, allowing users to manage multiple virtual identities and service subscriptions through a unified interface, eliminating the need to physically carry or switch between multiple SIM cards or devices.
Solution Approach 2:
The home network serves as an intermediary that mediates between the user's single device and multiple foreign networks. It handles the complexity of routing, authentication, and billing by translating between the user's home service and various international networks, allowing the user to interact with only one interface while the intermediary manages all the complexity behind the scenes.
3Adaptability or versatility
If service providers establish multiple roaming agreements to support global travelers, then communication coverage improves, but agreement complexity and setup burden increase
Solution Approach 1:
The system performs preliminary provisioning of multiple service accounts and MSISDNs to users before they travel. The home network pre-establishes relationships with multiple foreign networks and configures the user's profile with appropriate service accounts, so that when users travel, the communication framework is already in place and requires no on-the-spot setup or complex agreement negotiations.
Solution Approach 2:
The home network acts as a central intermediary that simplifies the web of roaming agreements by providing a single point of management. Instead of users or foreign networks directly negotiating complex bilateral agreements, the home network mediates all interactions, consolidating multiple agreements into a unified management structure that reduces overall complexity.
Data Source
AI summary
An approach is provided for global multiline roaming. A global roaming multiline platform provisions a communication device with a plurality of communication access numbers respectively associated with a plurality of communication service regions, wherein the plurality of communication access numbers are associated with a single subscriber identity module (SIM) of the communication device. The platform also selects a target communication access number from among the plurality of communication access numbers for relaying a communication session to or from the communication device based on a location of the communication device, a location of a called device, a location of a calling device, or a combination thereof with respect to the plurality of communication service regions.