ENUM Server Emergency Contact Routing via IMS
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Solution Overview
Problem
Provisioning emergency contact services in communication networks is a tedious, time-consuming, and error-prone process due to the complexity of coordinating multiple systems such as PBX, AIN, and SS7 internetworking systems.
Innovation Solution
A system and method utilizing an Internet Protocol Multimedia Subsystem (IMS) with a Telephone Number Mapping (ENUM) server and a Home Subscriber Server (HSS) to manage emergency contact services, where the ENUM server maps emergency telephone numbers to Uniform Resource Indicators (URIs) associated with emergency contact destination devices, and the HSS verifies active registration, enabling efficient routing of communications to designated devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional multiple system coordination method is used for provisioning emergency contact services, then comprehensive emergency contact functionality can be achieved, but the process becomes tedious, time-consuming and error-prone
Solution Approach 1:
The ENUM server acts as an intermediary component that centralizes the emergency contact provisioning process. Instead of coordinating multiple systems (PBX, AIN, SS7), the ENUM server single-handedly performs number mapping, contact information storage, and routing decisions, thereby reducing system coordination complexity while maintaining service reliability
Solution Approach 2:
The patent extracts the emergency contact provisioning functionality from the complex multi-system environment and consolidates it into a dedicated ENUM server. This separation isolates the emergency contact logic from other telephony systems, reducing the complexity of system coordination while preserving comprehensive emergency contact functionality
2Reliability
If traditional provisioning process is used, then emergency contact services can be established, but the process is time-consuming and tedious
Solution Approach 1:
The ENUM server performs preliminary actions by pre-mapping emergency telephone numbers to URIs and storing contact information in advance. When an emergency call is made, the routing decision is immediately available from pre-computed data, eliminating the need for time-consuming real-time coordination between multiple systems
Solution Approach 2:
The ENUM server provides self-service functionality by autonomously handling number mapping, contact information management, and routing decisions without requiring manual intervention or coordination with other systems. This automation reduces both provisioning time and human error while maintaining reliable emergency contact establishment
Data Source
AI summary
A method includes receiving a query at a telephone number mapping (ENUM) server, the query identifying an emergency telephone number associated with a subscriber to an emergency contact service. The method also includes retrieving from the ENUM server, in response to the query, one or more emergency contact Uniform Resource Identifiers (URIs) associated with the subscriber, where each of the emergency contact URIs has an associated emergency contact indicator. The method also includes initiating routing of a communication to destination devices associated with each retrieved emergency contact URI via an Internet Protocol Multimedia Subsystem (IMS).