Chapter 2 Installing and Configuring Cisco HSI Software

Installing the Cisco HSI

Table 2-2 Cisco HSI Installation Information (continued)

Required Information

Notes

Hardware platform

Installation location

1.VSC = virtual switch controller

2.DNS = domain name system

3.PGW = PSTN Gateway

The Cisco HSI application is distributed as a tar file (with filename GoldWing-xxxx.tar in which xxxx is the version ID, for example, GoldWing-4.1.tar) or as a CD-ROM.

The default installation directory is /opt/GoldWing. We recommend that you install the software at the default location. More than one version of the software can exist within subdirectories, for example /opt/GoldWing/4.1

Links point to the currently active version of the Cisco HSI application, as follows:

•currentPM points to the current version to use for all software except the call processing application.

•currentGW points to the version that may not be the latest version of the call processing application. (GWmain)

Table 2-3shows the subdirectories of the /opt/GoldWing/currentPM directory.

Table 2-3 CurrentPM Subdirectories

Subdirectory

Contents

 

 

./bin

All compiled executables.

 

 

./local

All scripts.

 

 

./etc

Base configuration files.

 

 

./lib

Shared libraries required by executables.

 

 

./toolkit

Toolkit files.

 

 

./var

Volatile directory that contains file locks and so on.

 

 

./var/log

Default log directory.

 

 

./var/prov

Provision system writes provisioning config files here.

 

 

./var/trace

Trace logs are written here.

 

 

Exported provisioning files are stored in /opt/GoldWing/export.

 

Cisco H.323 Signaling Interface User Guide

2-4

OL-4806-01 Rev. A14

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Cisco Systems H.323 manual Subdirectory Contents
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H.323 specifications

Cisco Systems H.323 is a set of standards designed for transmitting audio, video, and data over packet-switched networks. It is a critical technology that enables real-time communication and has become integral to the world of VoIP (Voice over Internet Protocol) and video conferencing applications. Originally developed by the ITU-T, H.323 has been widely adopted and implemented by Cisco Systems, allowing organizations to leverage reliable and scalable communication solutions.

One of the standout features of H.323 is its ability to support interoperability among varying equipment and platforms. This means that devices from different manufacturers can communicate seamlessly, which is vital in a diverse technical environment. H.323 does this by defining protocols that handle signaling, media transport, and control, ensuring that various systems can work together effectively.

Key technologies utilized within H.323 include H.225 and H.245 signaling protocols. H.225 is responsible for call setup and management, establishing communication between endpoints. In contrast, H.245 manages the negotiation of media channels, allowing devices to configure themselves based on the capabilities of each other. This adaptability is crucial for dynamic network conditions typical in VoIP applications.

Another defining characteristic of H.323 is its support for multiple types of multimedia communication, including point-to-point and multipoint calls. This flexibility supports everything from simple audio calls to complex videoconferencing setups, where many participants can share video and audio streams concurrently. Cisco enhances this capability through its hardware and software offerings, optimizing performance for conference calls.

H.323 also features robust error resilience mechanisms. This ensures that real-time data, which is typically sensitive to delays and losses, can be transmitted with minimal disruption. Moreover, it facilitates quality of service (QoS) implementation, allowing organizations to prioritize voice and video traffic over less critical data services, thereby improving the overall user experience.

In conclusion, Cisco Systems H.323 stands out as a comprehensive solution for real-time communication over packet-based networks. Its main features, including interoperability, multimedia support, and enhanced error resilience, position it as a relevant technology in both corporate and personal communication settings. As organizations continue to adopt cloud and hybrid communication models, H.323 remains a reliable backbone for ensuring connectivity and collaboration across diverse platforms.
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