Enterprise Network Session Anchoring for Cellular-Desktop Handoff
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Solution Overview
Problem
The proliferation of alternative communications systems, such as cellular networks and data networks, has created incompatibilities that hinder seamless handoff of communication sessions between cellular and desktop telephones, limiting single number reachability and increasing security risks.
Innovation Solution
The implementation of a method that anchors communication sessions in an enterprise network, allowing signaling to pass through network elements, enabling handoff between cellular and desktop telephones without a separate conference bridge, and providing single number reachability and enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If communication sessions are anchored in the enterprise network with signaling passing through network elements, then handoff between cellular and desktop telephones is enabled, but device complexity and network configuration requirements increase
Solution Approach 1:
The patent employs an intermediary device within the enterprise network that acts as a mediator between cellular and desktop telephones. This intermediary anchors communication sessions and manages signaling, enabling handoff capability while centralizing the complexity in a single network element rather than requiring complex configurations across multiple devices.
2Reliability
If a separate conference bridge is used to enable handoff between devices, then communication continuity is maintained, but cost increases
Solution Approach 1:
The patent makes the enterprise network's signaling elements multi-functional by having them perform both traditional switching functions and handoff management functions. This eliminates the need for separate conference bridge resources while maintaining communication continuity, as the same network elements that route calls also manage the handoff process between cellular and desktop telephones.
3Adaptability or versatility
If handoff between cellular and desktop telephones is enabled, then single number reachability is achieved, but security risks during handoff increase
Solution Approach 1:
The patent implements feedback mechanisms where the enterprise network continuously monitors and controls the handoff process. Signaling passes through network elements that can detect and respond to unauthorized access attempts, providing real-time feedback to prevent security breaches while maintaining single number reachability across different devices.
Data Source
AI summary
A method for effecting handoff of a communication session between a cellular telephone and a desktop telephone includes anchoring a communication session involving a remote device and a cellular telephone in an enterprise network such that signaling for the communication session passes through an element of the enterprise network; receiving an indication to handoff the communication session from the cellular telephone to a desktop telephone coupled to the enterprise network; placing the remote device in a holding state in response to the indication; and coupling the desktop telephone to the remote device to resume the communication session.