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High Availability Open Signaling Architecture

High Availability Open Signaling Architecture

Client: telecom hardware vendor

Scope: The project targets the implementation of redundant primary/backup signaling subsystem under complete control of the local call processing applications.
Development includes the ISUP, TUP, MTP application interfaces, which are integrated into the signaling APIs with CT Access.

Product Features:

  • The High Availability Open Signaling Architecture is a set of hardware and software components that support the development of distributed, highly available call processing systems employing SS7 signaling. These systems can detect and recover from some types of failures (such as board failures and signaling links failures) without a total service outage.
  • The core of the architecture is an SS7 software module that allows two TX series boards to be paired in a primary/backup arrangement for high availability.
  • The TX boards may be spread across two signaling nodes or may be located in the same signaling node.
  • Other important components of the architecture are a board-to-board communication facility that allows exchanging of signaling messages and state information between the paired boards and a health management facility, which monitors the state of the signaling boards and initiates recovery actions, which directed by the local applications.

Tools & Technologies: Windows NT, Solaris
Name: High Availability Open Signaling Architecture
Tags: case study, DDC, software development, telecom, embedded, kernel, digital signal processing, DSP

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