Static Registration of Non-SIP Aggregate End Point Devices in IMS Networks
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Solution Overview
Problem
Aggregate End Point (AEP) devices, such as IP PBX systems, that do not support Session Initiation Protocol (SIP) based Internet Protocol Multimedia Subsystem (IMS) registration are unable to utilize services provided by IMS networks, as they are treated as unregistered endpoints.
Innovation Solution
The method involves static registration of AEP devices through provisioning by a service provider in key network elements like Proxy Call Session Control Function (P-CSCF), Serving Call Session Control Function (S-CSCF), Home Subscriber Server (HSS), and Application Servers, allowing them to be treated as registered and enabling consistent service treatment within the IMS network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If AEP devices use standard SIP based IMS registration, then they can utilize services provided by IMS network, but AEP devices that do not support SIP registration cannot be registered and treated as unregistered endpoints
Solution Approach 1:
The patent applies preliminary action by pre-registering AEP devices in the HSS before they actually need to place or receive calls. The service provider performs static registration in advance, provisioning the AEP device identifier and associated user profiles in the HSS, so that when call requests are made, the devices are already recognized as registered in the network
Solution Approach 2:
The patent introduces the service provider as an intermediary that performs registration on behalf of AEP devices. The service provider acts as a mediator between the AEP devices and the IMS network, using administrative interfaces to provision registration information in the HSS, thereby enabling devices that cannot perform self-registration to still access network services
2Reliability
If AEP devices perform dynamic SIP registration, then they can maintain current registration status, but devices incapable of SIP registration remain unregistered and unable to access services
Solution Approach 1:
The patent applies self-service in a modified form where the service provider automates the registration process for multiple AEP devices simultaneously. Instead of requiring individual manual configuration for each device, the service provider uses bulk provisioning capabilities to automatically register devices in the HSS, reducing operational complexity while maintaining service access
3Reliability
If all endpoints are treated uniformly requiring SIP registration, then network security and protocol compliance are maintained, but AEP devices without SIP capability are excluded from service
Solution Approach 1:
The patent applies local quality by creating different registration pathways for different device types. Standard SIP-capable devices continue to use dynamic SIP registration, while AEP devices use static provisioning-based registration. This localized approach allows each device type to use the registration method most appropriate to its capabilities while maintaining overall network security
Solution Approach 2:
The patent changes the registration parameter from dynamic SIP-based registration to static provisioning-based registration for AEP devices. By modifying the registration mechanism parameter, the system accommodates devices with different capabilities while maintaining network security through controlled provisioning processes that validate device identities and permissions
Data Source
AI summary
A method and apparatus for enabling registration of an Aggregate End Point (AEP) device that is incapable of supporting a Session Initiation Protocol (SIP) based Internet Protocol Multimedia Subsystem (IMS) registration are disclosed. The method performs a static registration of the AEP device in a plurality of network elements associated with an Internet Protocol Multimedia Subsystem (IMS) network by provisioning. The method then processes an originating call request or a terminating call request associated with the AEP device using the static registration.