Temporary Callback Number Gateway for Emergency Calls
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Solution Overview
Problem
Emergency calls from restricted phones often result in blocked callbacks due to call restrictions, preventing emergency service providers from initiating a return call.
Innovation Solution
A system that allocates a temporary callback number for emergency calls, allowing callbacks to be routed through a gateway that replaces the restricted caller's number with a predetermined value, enabling calls to reach restricted phones without being blocked.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If call restrictions are imposed on a phone to limit who can call, then security and control over incoming calls are improved, but the ability of emergency service providers to initiate callbacks is blocked
Solution Approach 1:
The system introduces a temporary callback number as an intermediary between the emergency service provider and the restricted phone. When a callback is needed, the PSAP calls the temporary number, which then relays the call to the actual restricted number. This mediator bypasses the call restriction without compromising the restriction's effectiveness for direct calls.
Solution Approach 2:
The callback process is segmented into two distinct phases: first, establishing a call through the temporary callback number that is not blocked by restrictions; second, relaying the call to the actual restricted number. This segmentation allows the system to overcome the restriction barrier while maintaining the restriction's intended security function.
2Ease of operation
If a temporary callback number system is implemented to bypass call restrictions, then callback capability is improved, but system complexity increases
Solution Approach 1:
The temporary callback number gateway is designed as a universal system that can handle multiple types of restricted numbers and various emergency service scenarios. Rather than creating separate solutions for different restriction types, a single multi-functional gateway handles all callback relaying needs, reducing overall system complexity.
Solution Approach 2:
The system automatically detects when a restricted number is involved and initiates the temporary callback number process without requiring manual intervention. The gateway self-manages the relaying process, obtaining the temporary number, placing the call, and transferring it to the restricted number autonomously.
Data Source
AI summary
A system, method, and computer readable medium comprising instructions for providing temporary callback number for emergency calls is disclosed. A determination is made as to whether a restriction is imposed on a mobile user for incoming calls. A temporary callback number for the mobile user is generated if the restriction is imposed. A request for a callback to the mobile user comprising the temporary callback number is detected. The callback is routed to the mobile user using the temporary callback number.