Private Cellular Network PBX Remote Access via IMS APN
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Solution Overview
Problem
Current solutions for maintaining remote connectivity and access to Private Branch Exchange (PBX) devices require reconfiguration of external devices, typically involving the download of applications like VoIP software, which is not seamless.
Innovation Solution
Endpoint devices with cellular connectivity can connect to PBX systems using their native dialer without reconfiguration or software downloads, establishing an IP Multimedia Service (IMS) Access Point Name (APN) connection through a router associated with a private cellular network, enabling seamless access to PBX devices and services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external devices download VoIP applications to access PBX devices remotely, then connectivity to PBX devices is enabled, but device complexity and ease of operation deteriorate due to reconfiguration requirements
Solution Approach 1:
The patent introduces a private cellular network as an intermediary between external devices and PBX devices. This network includes a gateway that automatically handles protocol translation and connection management, eliminating the need for users to install VoIP applications or reconfigure devices. The gateway acts as a mediator that transparently bridges the cellular network and PBX system, allowing seamless access through native dialers while maintaining connection reliability.
2Reliability
If external devices download VoIP applications to access PBX devices remotely, then connectivity to PBX devices is enabled, but ease of operation worsens due to software installation requirements
Solution Approach 1:
The private cellular network gateway performs self-service by automatically detecting external devices, provisioning appropriate connection parameters, and managing protocol translations without user intervention. The system autonomously handles device registration, authentication, and session management, eliminating the need for users to manually install or configure VoIP software while ensuring reliable remote connectivity.
3Productivity
If standard data APN is used for network traffic, then connectivity is established, but network performance deteriorates due to lower quality of service
Solution Approach 1:
The patent implements local quality by creating a dedicated IMS APN configuration specifically for voice and multimedia traffic within the private cellular network. This specialized APN provides optimized QoS parameters including guaranteed bandwidth, low latency, and high priority handling for PBX-related traffic, distinguishing it from standard data APN configurations while maintaining manageable system complexity through automated provisioning.
Data Source
AI summary
In one aspect, a network component associated with a private cellular network includes at least one memory having computer-readable instructions stored therein and one or more processors. The one or more processors are configured to execute the computer-readable instructions to receive, from a user equipment, a request to register with the private cellular network, the user equipment having a unique identifier; determine, at the network component or via cloud-based Evolved Packet Core (EPC) communicatively coupled to the network component, a home EPC associated with the user equipment using the unique identifier of the user equipment; and establish an IP Multimedia Service (IMS) Access Point Name (APN) connection between the user equipment and the home EPC associated with the user equipment, the IMS APN enabling a seamless connectivity of the user equipment to a terminal on a Private Branch Exchange (PBX) system using a native dialer of the user equipment.