Index

dynamic B-1

 

 

provisionable

B-1

 

static

B-1

 

 

debounce

5-1

 

 

default active log file

4-9

detailed logging

5-16

 

diaglog command

A-4,A-10

documentation

 

 

related

xiv

 

 

document conventions

xiii

dynamic

 

 

 

configuration data

3-1

system data parameters 3-6

E

E-ISUP

 

 

overview

1-4

 

protocol

1-4

 

EISUP_PATH_FAILURE alarm 5-7

empty capability set 3-17

ENDPOINT_CALL_CONTROL_INTERFACE_FAILUR

E alarm

5-12

ENDPOINT_CHANNEL_INTERFACE_FAILURE

alarm

5-12

Enhanced ISDN User Part

See E-ISUP

 

G

GAPPED_CALL_NORMAL alarm 5-13GAPPED_CALL_PRIORITY alarm 5-13gapping

call type 4-11description 4-11level 4-11retrieving data 4-12setting 4-11

GATEKEEPER_INTERFACE_FAILURE alarm 5-8

GENERAL_PROCESS_FAILURE alarm 5-8

group names, configuring 2-2

H

H.225 protocol

1-4

 

 

 

H.245

 

 

 

 

 

 

 

codec parameters

3-15

 

counter groups

4-3

 

 

parameters

3-14

 

 

 

H.323

 

 

 

 

 

 

 

IP network

1-2

 

 

 

 

network

1-1

 

 

 

 

 

stack

 

 

 

 

 

 

 

configuration

3-8

 

 

system parameters

3-9

 

H.323 Hairpin

3-17

 

 

 

H.323 Signaling Interface

 

See HSI

 

 

 

 

 

 

H323_STACK_FAILURE alarm

5-6

hardware requirements

1-4

 

h command

A-10

 

 

 

 

help command

A-6,A-11

 

HSI

 

 

 

 

 

 

 

asymmetric codec treatment

3-17

base directory path

 

2-3

 

configuration

 

 

 

 

 

data

3-1

 

 

 

 

 

file

3-1

 

 

 

 

 

overview

3-1

 

 

 

configuring

2-11

 

 

 

default

 

 

 

 

 

 

 

base directory path

2-6

 

gatekeeper port

2-3

 

group name

2-3

 

 

 

user name

2-3

 

 

 

empty capability set

3-17

 

H.323 Hairpin

3-17

 

 

hardware requirements 1-4,2-1

 

 

Cisco H.323 Signaling Interface User Guide

 

 

 

 

 

 

 

OL-4806-01 Rev. A14

 

 

IN-5

 

 

 

 

 

Page 194 Page 196
Page 195
Image 195
Cisco Systems H.323 manual Isup, Endpointcallcontrolinterfacefailur, Endpointchannelinterfacefailure, Hsi
Page 194 Page 196

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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