VoIP Host Switch Routing via LRN Database for Number Portability
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Solution Overview
Problem
VoIP network providers face increased costs and time in managing subscriber telephone numbers, as they must directly administer additions, deletions, and modifications, limiting customers' ability to perform services like local number portability and caller ID without relying on the provider.
Innovation Solution
Implementing a system where a host switch in a VoIP network, coupled with a PSTN and remote switches, uses a database to route calls based on a location routing number (LRN) field, querying a Number Portability Administration Center database if necessary, to identify the target remote switch for customer-owned telephone numbers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the VoIP network owner directly administers the addition, deletion, and modification of telephone numbers, then call routing reliability is improved, but the time and cost for managing subscribers increases
Solution Approach 1:
The system enables customers to autonomously manage their own telephone numbers through customer-owned remote switches. The automated database systems (NPAC, LRN/TN database) automatically resolve number portability and routing information without requiring manual intervention from VoIP network owners, allowing customers to perform services like local number portability independently.
Solution Approach 2:
The patent introduces automated database intermediaries (NPAC database and LRN/TN database) that mediate between the PSTN and customer-owned remote switches. These databases automatically provide number portability information and routing data, eliminating the need for direct administrative management by VoIP network owners while ensuring reliable call routing.
2Adaptability or versatility
If the VoIP network owner directly administers telephone number management, then service control capability is improved, but operational complexity increases
Solution Approach 1:
Customers are empowered to independently provision and manage their own telephone numbers and services through customer-owned remote switches. The automated database systems handle service control functions automatically, allowing customers to perform operations like local number portability, emergency call completion, and caller ID functions without requiring complex administrative processes or direct involvement from the VoIP network owner.
Solution Approach 2:
The patent extracts the telephone number management functions from the VoIP network owner's administrative control and transfers them to customer-owned remote switches. This separation allows customers to independently manage their services while the VoIP network owner focuses on core network operations, reducing operational complexity for both parties.
3Reliability
If customers rely on the VoIP network owner for telephone number services, then service reliability is improved, but customer independence and efficiency decrease
Solution Approach 1:
The system enables customers to independently manage their own telephone numbers through customer-owned remote switches connected to the PSTN via the VoIP network. Automated database systems (NPAC, LRN/TN database) provide reliable number portability and routing information, allowing customers to perform services like local number portability, emergency call completion, and caller ID functions autonomously without requiring the VoIP network owner's direct involvement.
Solution Approach 2:
Automated database intermediaries (NPAC and LRN/TN databases) are introduced to provide reliable telephone number services to customers independently. These databases automatically resolve number portability information and routing data, ensuring service reliability while enabling customers to operate without relying on the VoIP network owner for administrative functions.
4Adaptability or versatility
If the VoIP network owner manages all telephone number allocations, then network control is improved, but costs for number management increase
Solution Approach 1:
Customers independently manage their own telephone number allocations through customer-owned remote switches, eliminating the need for the VoIP network owner to directly administer number allocations. The automated database systems handle number portability and routing information automatically, reducing the time, labor, and financial costs associated with number management while maintaining network control through standardized interfaces.
Solution Approach 2:
Automated database intermediaries (NPAC and LRN/TN databases) are introduced to manage telephone number information and routing data. These databases provide standardized, automated access to number portability and routing information, reducing the need for manual administrative processes and lowering the costs of number management for both the VoIP network owner and customers.
Data Source
AI summary
According to various embodiments of the present invention, systems and methods for routing telephone calls from host switch to remote switch in a Voice Over Internet Protocol (“VoIP”) network. In one embodiment, a system includes a host switch in a voice over internet protocol (“VoIP”) network communicably coupled with a plurality of remote switches and a public switched telephone network (“PSTN”), the host switch to receive a call from the PSTN having signaling including a location routing number (“LRN”) field, and a database communicably coupled to the host switch to identify a target remote switch of the plurality of remote switches that is associated with at least a portion of the LRN field. In addition, the host switch is to send the call to the target remote switch based on the identification by the database. Other embodiments are also disclosed.