PBX Group Call Routing and Callback Handling
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Solution Overview
Problem
Existing enterprise telephony systems, such as PBXs, lack the ability to indicate that a call is made on behalf of multiple parties or a group, making it difficult for the called party to return the call to the appropriate individual when the original caller is unavailable.
Innovation Solution
Implementing functionality in PBX systems to initiate calls on behalf of a group or virtual group, providing an indication to the callee of the call's purpose and allowing callback to the group, with features like short codes for group calling, virtual group creation, and automatic log entries for group members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a call is initiated from a single party in prior enterprise telephony systems, then the system maintains simplicity in call routing and logging, but the called party cannot efficiently return the call when the original caller is unavailable
Solution Approach 1:
The system segments the calling party information into individual caller identifiers and group identifiers. When a call is placed on behalf of a group, the system separates the actual caller from the group representation, allowing the called party to return the call to the group rather than just the individual caller. This segmentation enables efficient call return while preserving necessary information about both the caller and the group context.
Solution Approach 2:
The system introduces a group identifier as an intermediary between the individual caller and the called party. The group identifier serves as a mediator that represents multiple potential recipients, allowing the called party to return the call to any group member. This intermediary preserves the relationship between the caller and the group while enabling flexible call routing.
2Loss of information
If the system only displays the single calling party's number, then the call routing remains simple, but the called party lacks information about other parties interested in the call purpose
Solution Approach 1:
The system merges multiple individual caller identifiers into a single group identifier for display purposes. Instead of showing each individual caller separately, the system combines them under a common group representation, reducing information loss while avoiding excessive complexity in the display and routing system.
Solution Approach 2:
The group identifier serves multiple functions: it represents multiple individual callers, enables call return to any group member, and provides a unified display element. This multi-functionality reduces information loss without proportionally increasing system complexity, as the same group identifier handles multiple tasks.
3Adaptability or versatility
If virtual user groups are created and managed in the PBX, then group calling functionality is enabled, but the system complexity increases
Solution Approach 1:
The system implements dynamic group management where virtual user groups can be created, modified, and dissolved as needed. Groups are not fixed structures but can adapt to changing organizational needs, allowing the system to provide group calling capability while maintaining flexibility and avoiding permanent structural complexity.
Solution Approach 2:
The system enables automatic group management features where groups can be formed and managed with minimal administrative intervention. The PBX automatically handles group call routing, logging, and notification, reducing the operational complexity despite the enhanced group calling capability.
Data Source
AI summary
Individuals often place calls on behalf of a group or collection of individuals. As provided herein, a caller may access or establish a group number to be presented to a callee. The callee then receives the call, such as by answering, caller identifier display, etc., and may wish to return the call. The callee then places a call to the group, rather than the individual who placed the call, which is then routed to members of the group. Any member of the group may then answer the call, thus avoiding issues associated with the originating caller being unavailable when any member of the group could address the purpose of the call. Additionally, status information may be automatically provided to allow group members to receive activity notification for calls to and/or from the group. For example, an indication that a call to an individual was placed on behalf of the group and, optionally, the status (e.g., answered, voicemail, etc.) of the call.