Dual-Mode Phone Call Redirection for Unified Caller-ID
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Solution Overview
Problem
Dual-mode phones currently present different caller-id information when switching from Wi-Fi to cellular networks, disrupting a unified calling experience in enterprise environments.
Innovation Solution
Modifying dual-mode phones to redirect cellular calls to a preprogrammed enterprise number, allowing the PBX to transmit enterprise caller-id information, ensuring a consistent caller-id presentation across networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dual-mode phone uses cellular network for calling, then call connectivity is maintained when away from enterprise Wi-Fi, but different caller-id information is presented to the called party
Solution Approach 1:
The patent introduces an intermediary mechanism where cellular calls are redirected to a preprogrammed enterprise number, and the enterprise PBX acts as a mediator to transmit the correct enterprise caller-id information. This intermediary approach allows the system to maintain both cellular connectivity and enterprise caller-id presentation without directly modifying the cellular network infrastructure.
2Ease of operation
If dual-mode phone places call directly through cellular network, then call establishment is simple and direct, but enterprise caller-id information cannot be transmitted
Solution Approach 1:
The system performs preliminary action by pre-programming the enterprise number into the dual-mode phone before cellular service is deactivated. This preliminary configuration enables the phone to automatically redirect cellular calls to the enterprise number, ensuring enterprise caller-id information can be transmitted without requiring real-time configuration or user intervention during the calling process.
Data Source
AI summary
Providing a single number presentation to the party called by a dual-mode phone. The operation of the cellular side of a dual-mode phone is altered such that when the user attempts to place an outgoing call using the cellular phone, the call is redirected to a preprogrammed incoming phone number associated with the enterprise. When the enterprise PBX answers this call, the dual-mode phone transmits the desired number to the enterprise PBX. The enterprise PBX then places the call to the desired number, and in the process transmits the caller-id information assigned to the dual-mode phone.