CLID-Agnostic Second Line Service Routing via Intermediary App
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Solution Overview
Problem
Second-line service (SLS) platforms face challenges in routing calls when the calling line identification (CLID) data is missing, particularly when subscribers roam to different telecommunications networks, as the SLS platform cannot identify the subscriber's phone number to route calls effectively.
Innovation Solution
The implementation of CLID-agnostic SLS systems, which assign special relationship numbers to subscribers, allowing calls to be routed through a pool of unique relationship numbers that do not rely on CLID data, enabling call completion even when CLID is unavailable. This involves querying local databases, assigning special relationship numbers, and using session initiation protocol (SIP) for data service integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the SLS platform uses CLID data to identify the subscriber's phone number, then call routing is straightforward and reliable, but the system fails when CLID data is missing (e.g., during roaming)
Solution Approach 1:
The patent introduces a mobile application as an intermediary component between the subscriber's mobile device and the SLS platform. This application captures the actual phone number used by the subscriber and transmits it to the SLS platform, serving as a mediator that bridges the gap when CLID data is unavailable. The intermediary ensures call routing functionality remains intact regardless of CLID availability.
Solution Approach 2:
The mobile application performs preliminary action by capturing and storing the subscriber's actual phone number before the call routing process begins. This pre-capture of identification data ensures that the SLS platform receives the necessary routing information in advance, eliminating the dependency on CLID data that may not be available during roaming or certain network conditions.
2Productivity
If the system requires CLID data for call routing, then the routing process is simple, but the service is interrupted when subscribers roam to different networks
Solution Approach 1:
The mobile application acts as an intermediary that collects and transmits the subscriber's actual phone number to the SLS platform, ensuring that routing information is available even when roaming. This intermediary mechanism maintains service continuity by providing an alternative source of identification data that does not depend on network-provided CLID.
Solution Approach 2:
The system performs preliminary action by having the mobile application capture and transmit the phone number before the call routing is needed. This advance preparation ensures that routing information is already available in the SLS platform, maintaining call routing efficiency regardless of whether the subscriber is roaming or on their home network.
3Reliability
If the SLS platform cannot identify the subscriber's phone number, then call routing fails, but implementing alternative identification methods increases system complexity
Solution Approach 1:
The mobile application serves as a relatively simple intermediary that adds minimal complexity to the system. It performs a straightforward function of capturing the phone number and transmitting it to the SLS platform, ensuring call completion success without requiring major architectural changes to the core SLS platform.
Solution Approach 2:
The mobile application enables self-service by having the subscriber's device automatically capture and transmit its own phone number information. This self-service approach eliminates the need for complex external identification systems while ensuring reliable call completion, as the device itself provides the necessary identification data.
Data Source
AI summary
A mobile application and a method are described for servicing a second line service (“SLS”) based communication request originating from a subscriber's telecommunications device (“TD”) even if the call signal does not include sufficient information to identify the phone number from which the subscriber initiated the call. The method involves associating the SLS phone number of the subscriber, the primary number of the subscriber and the primary number of a third party via a special relationship number.