Carrier ENUM Routing via Private Database
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Solution Overview
Problem
Current IP carrier interconnection methods are inefficient as they require extensive system resource usage and monitoring across networks to route calls, leading to unnecessary resource expenditure and potential missed calls due to lack of insight into the call path between originating and recipient networks.
Innovation Solution
Implementing a private ENUM database for carrier ENUM-based routing, which allows networks to efficiently locate and connect subscriber devices across disparate carriers by using a hierarchical database structure and NAPTR records to determine routing information and direct calls to appropriate network equipment, reducing the need for all BGCFs to support carrier ENUM queries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the originating network sends call information to all available networks to route calls, then the call can be delivered to the destination device, but system resources are excessively consumed on the originating side
Solution Approach 1:
The patent applies preliminary action by pre-establishing routing information in ENUM databases before calls are initiated. The ENUM database contains pre-configured mappings between phone numbers and network routing information, allowing the originating network to query and obtain the correct routing path in advance without needing to broadcast call information to all networks. This resolves the contradiction by enabling reliable call delivery through pre-prepared routing data while minimizing real-time resource consumption.
2Reliability
If the recipient network monitors all call requests from all networks, then no calls are missed, but system resources are excessively consumed on the recipient side
Solution Approach 1:
The patent introduces ENUM databases as intermediaries between the originating and recipient networks. Instead of direct monitoring of all call requests, the ENUM database serves as a mediator that stores and provides routing information. The recipient network only needs to query the ENUM database for routing information related to its subscribers, rather than monitoring all call requests from all networks. This resolves the contradiction by enabling complete call reception through the intermediary ENUM system while significantly reducing the monitoring burden on recipient networks.
3Reliability
If traditional IP carrier interconnection methods are used, then calls can be routed between networks, but network costs and media delay increase
Solution Approach 1:
The patent extracts the routing information function from the traditional network-to-network communication process and places it in dedicated ENUM databases. By separating the routing information storage and retrieval function from the actual call traffic flow, the system enables direct routing decisions without unnecessary network hops or monitoring steps. This resolves the contradiction by maintaining reliable call routing through the ENUM extraction mechanism while reducing media delay by eliminating redundant network interactions.
Data Source
AI summary
Methods and systems may provide carrier ENUM based routing for subscriber devices (e.g., voice or other multimedia services over IP) to locate and to connect to subscriber devices of another IP peering carrier. A private ENUM database may be used to connect subscribers of disparate carriers using a domain for designated breakout gateway control functions.