Method and system for implementing aggregate endpoints on IMS networks

US9379914B2 · kind B2 · utility

Assignees

• AT&T Intellectual Property I, L.P. · US
• Acme Packet, Inc. · US

Inventors

• Min Lu · Nanhu, CN
• Martin Dolly · Forked River, US
• Saul Daniel Fishman · Edison, US
• Gerald L. Hoover · Red Bank, US
• Mark A. Ratcliffe · Oakhurst, US
• Tienyu Chiu · Naperville, US
• Guy J. Zenner · Northbrook, US
• Canby Dautel, Jr. · Framingham, US
• Hadriel S. Kaplan · Nashua, US
• Nathan Thomas Denbow · Sandwich, US

Key dates

• Filing date: May 11, 2007
• Grant date: Jun 28, 2016
• Expiry date: Jul 22, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L65/1073
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A method and system are adapted to provide telephony services to aggregate endpoints on an Internet Protocol Multimedia Subsystem (IMS) network. The method includes assigning one or multiple PUIDs for surrogate registration purposes during the provisioning of the aggregate endpoint, performing reliable surrogate registration on behalf of the aggregate endpoint, allowing multiple SBCs to perform surrogate registrations independently for the same aggregate endpoint to achieve reliability, and providing reliable connection from an IMS core to the aggregate endpoints via multiple S/BCs. The system includes one or more Session Border Controllers (S/BC), at least one set of Call/Session Control Functions (CSCF), and an HSS operatively coupled together.