Seamless Call Transfer Between Mobile and VoIP Networks
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Solution Overview
Problem
Existing systems fail to seamlessly transfer voice calls from mobile access networks to VoIP networks without disrupting the call, leading to resource inefficiencies and potential audio loss during network transitions.
Innovation Solution
Implementing a method that initiates a three-way call by recognizing the availability of a VoIP network during an active voice call, establishing a data connection, and using a conference indicator to bind and transfer the call from the mobile access network to the VoIP network, allowing seamless continuity without the need for a VCC server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional call transfer method is used between mobile access network and VoIP network, then the call can be transferred, but the transfer disrupts the call causing audio loss and requires user intervention
Solution Approach 1:
The system performs preliminary actions by establishing a data connection and initiating a three-way call binding process before the actual call transfer is needed. This prepares the VoIP pathway in advance, allowing seamless switching without disrupting the ongoing call or requiring user intervention during the transfer moment.
Solution Approach 2:
The patent introduces a binding mechanism as an intermediary between the mobile access network call and the VoIP network call. This binding process creates a three-way call relationship that acts as a mediator, allowing the call to transition smoothly from one network to another without direct disruption to the audio stream.
2Productivity
If call transfer between networks is implemented, then network resource utilization improves, but call disruption and audio loss occur
Solution Approach 1:
The patent maintains continuity of the useful action (voice communication) throughout the network transfer process. By establishing a three-way call binding and using a data connection for the VoIP pathway, the system ensures that the voice stream continues uninterrupted while the underlying network path changes, allowing resource optimization without sacrificing call reliability.
3Adaptability or versatility
If traditional call transfer methods are used, then network switching is possible, but audio loss and call disruption occur during transition
Solution Approach 1:
The system establishes the VoIP data connection and initiates the binding process in advance, before the actual network switching occurs. This preliminary setup ensures that the audio pathway is ready and configured properly, allowing the transition to VoIP network without audio loss or quality degradation.
Solution Approach 2:
The three-way call binding mechanism serves as an intermediary that bridges the mobile access network and VoIP network. This binding process maintains audio quality by creating a controlled transition pathway that prevents audio loss during the network adaptability switch.
Data Source
AI summary
Systems, methods, and computer-readable media for facilitating call continuity when transferring calls between mobile access networks to voice over internet protocol networks. The method includes recognizing availability of a voice over internet protocol network during a voice call established via a wireless access network. Thereafter, a data connection between a user device and the voice over internet protocol network is established. A transfer of the voice call from the wireless access network to the voice over internet protocol network is initiated by initiating a three-way call. Such a three-way call includes a first portion routed to a destination device via a public switch telephone network and a second portion routed to the user device via the voice over internet protocol network.