GTT-Based In-Network Call Detection and Notification
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Solution Overview
Problem
Current methods for determining in-network mobile calls are inaccurate, especially with number portability, and do not provide timely or comprehensive in-network notifications to call recipients, limiting cost-saving promotions and user awareness.
Innovation Solution
A system that performs Global Title Translation (GTT) on incoming numbers to determine the hosting carrier, generating notifications to the caller about in-network status, including cost savings and promotional offers, using a combination of local and network-based queries to ensure accurate and timely information display on mobile devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If network-based GTT query is performed to determine carrier association, then in-network notification accuracy is improved, but call setup time increases due to database lookup delays
Solution Approach 1:
The system performs GTT queries and determines carrier associations in advance, before the actual call is established. Call recipient handsets pre-fetch and store carrier information for frequently called numbers, so that when a call arrives, the in-network status is already known and can be displayed immediately without delaying call setup.
Solution Approach 2:
The system anticipates the need for carrier identification by implementing pre-call preparation mechanisms. Handsets proactively query the network for carrier information and cache it locally, cushioning against the time penalty that would otherwise be incurred during actual call setup by performing the lookup beforehand.
2Measurement precision
If GTT database lookup is performed for each incoming call, then in-network determination accuracy is improved, but network processing cost and complexity increase
Solution Approach 1:
Carrier identification is performed in advance and results are cached on handsets. The network establishes carrier associations beforehand, and handsets store this information locally for quick reference, eliminating the need for repeated real-time database lookups during each call setup.
Solution Approach 2:
Instead of requiring the network to perform database lookups for every call, the system creates local copies of carrier identification data on handset devices. These cached copies enable fast, accurate in-network determination without burdening the network with repeated processing of the same information.
3Ease of operation
If in-network notification is provided only after call termination, then processing simplicity is maintained, but user awareness and cost-saving opportunities are reduced
Solution Approach 1:
The system determines and displays in-network status before the call is fully established. By performing carrier identification in advance and making the information available during the call setup phase, users are informed of potential cost savings before they answer or reject the call, enabling informed decision-making.
Solution Approach 2:
The system provides immediate feedback to users about the in-network status of incoming calls through visual indicators on the handset display. This real-time feedback loop informs users during the call setup phase rather than after termination, allowing them to take advantage of cost-saving promotions by choosing to answer or reject based on the displayed information.
Data Source
AI summary
System and method for determining whether an incoming call originates from inside or outside of a mobile carriers network. An example system performs a GTT (global title translation) on an incoming number to determine the hosting carrier of any mobile phone number. After the result of the matching determination is made, a message is generated and sent to a caller associated with the call page. The generated message includes any of directory information associated with the subscriber, information associated with cost savings or comparisons associated with in-network calling, information regarding promotions for calling plans, mobile devices or device upgrades, requests to join a network, requests to join a social call plan, information regarding instant savings or call rebates, offers for online services or software, offers for reduced cost or free phone service in exchange for adoption of a predefined product or entering into a social network group.


