Call Routing via Universal Destination Identifier
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Solution Overview
Problem
In wireless communications networks, users face the challenge of managing multiple device-specific destination identifiers for different call types, requiring the calling party to keep track of various identifiers for reaching the appropriate device.
Innovation Solution
A system and method that determines the call type and selects a call-type-specific destination identifier from a plurality of identifiers, allowing calls to be routed to the called party using a single point of contact, known as a Subscriber Universal Destination Identifier (SUDI), which can be a phone number or Uniform Resource Identifier (URI), enabling different call types to be routed to corresponding destinations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple device-specific destination identifiers are used for different call types, then calls can be routed to specific devices, but the calling party must keep track of various identifiers increasing complexity
Solution Approach 1:
The patent introduces a universal destination identifier (UDI) that serves as a single point of contact for multiple call types and devices. Instead of requiring separate identifiers for each device, the UDI provides a unified access point that can route different call types (voice, data, SMS) to appropriate destinations, thereby reducing identifier management complexity while maintaining routing versatility
Solution Approach 2:
The network entity acts as an intermediary between the calling party and multiple called party devices. When a call is made to the UDI, the network entity receives the call, determines the appropriate destination based on call type and subscriber profile, and routes the call accordingly. This intermediary function eliminates the need for the calling party to manage multiple identifiers
2Ease of operation
If a single point of contact is used for all call types, then identifier management is simplified, but the ability to route different call types to specific devices may be lost
Solution Approach 1:
The universal destination identifier (UDI) is designed to handle multiple call types (voice, data, SMS, video) and route them to different destinations based on the call type and subscriber preferences. This multi-functional capability allows a single identifier to maintain both simplicity for the user and versatility for the network
Solution Approach 2:
The system performs preliminary routing decisions at the network entity before the call reaches the destination. The network entity determines the appropriate destination identifier based on the call type and subscriber profile in advance, allowing the UDI to remain simple while enabling sophisticated call type-specific routing to occur automatically in the background
Data Source
AI summary
A system and method of routing calls made to a called party Subscriber Universal Destination Identifier (SUDI) in a wireless communications network is provided. The method includes determining the call type, selecting a call-type-specific destination identifier for the call from a plurality of called party destination identifiers based on the call type, and routing the call to the called party using the selected call-type-specific destination identifier. The step of determining the call type can include determining the call protocol, determining the media type, and determining the call type from the call protocol and the media type. The system includes functionality for determining the call type, selecting a call-type-specific destination identifier for the call from a plurality of called party destination identifiers based on the call type, and routing the call to the called party using the selected call-type-specific destination identifier.