Manuals / Cisco Systems / Computer Equipment / Network Card

Cisco Systems H.323 manual String H323ESP, R0.2.4 Immediate Assigns to each version

Models: H.323

1 199
Download 199 pages 45.03 Kb
Page 55
Image 55

Chapter 3 Provisioning the Cisco HSI

H.323 Stack Configuration

Table 3-8 RAS Parameters (continued)

Parameter Name

Description

Type

Example

Update Type

 

 

 

 

 

manualDiscovery.port

The port associated with the

INTEGER(0, 65535)

1719

Start

 

manualDiscovery.ipAddress,

 

 

 

 

which can, by agreement, be

 

 

 

 

either a well-known port or

 

 

 

 

another port.

 

 

 

 

 

 

 

 

gateway.prefix[i]

The gateway registers the

STRING

0208

Immediate

 

telephone prefix specified by

 

 

 

 

this parameter to indicate

 

 

 

 

that it is able to terminate it.

 

 

 

 

 

 

 

 

gatekeeperId

Identifies the gatekeeper

STRING

OuterLondon

Immediate

 

with which the endpoint is

 

 

 

 

trying to register.

 

 

 

 

 

 

 

 

terminalAlias[i].e164

Two variants of the same

STRING

0208001000

Immediate

 

address for the endpoint;

 

 

 

terminalAlias[i].h323ID

STRING

GW@ot.com.au

Immediate

e164 is numeric and h323ID

 

 

 

 

 

is text.

 

 

 

 

 

 

 

 

endpointVendor.t35CountryCode

These parameters identify

INTEGER(0, 255)

11

Immediate

 

the manufacturer of the

 

 

 

endpointVendor.t35Extension

INTEGER(0, 255)

11

Immediate

endpoint.

 

 

 

 

endpointVendor.manufacturerCode

INTEGER(0, 65535)

9

Immediate

 

 

 

 

 

 

endpointVendor.productId

Data that the manufacturer

STRING

H323ESP

Immediate

 

assigns to each product.

 

 

 

 

 

 

 

 

endpointVendor.versionId

Data that the manufacturer

STRING

R0.2.4

Immediate

 

assigns to each version.

 

 

 

 

 

 

 

 

H.245 Parameters

To modify the H.245 parameters listed in Table 3-9, use the h245 MML name variable for the prov-add,prov-dltand prov-edcommands.

In the following example, the prov-addcommand sets the H.245 parameter masterSlave.timeout to the value 5.

Example

prov-add:name=h245,masterSlave.timeout=5

The Update Type column in Table 3-9shows when a change to an H.245 parameter takes effect after it is modified:

•Immediate means that the effect of the change is immediate.

•Start means that the application needs to be restarted for the change to take effect.

•Next Call means that the next call has the new parameter set.

Note Immediate and Next Call update types are dynamic system data.

 

 

Cisco H.323 Signaling Interface User Guide

 

 

 

 

 

 

OL-4806-01 Rev. A14

 

 

3-15

 

 

 

 

 

Page 54 Page 56
Page 55
Image 55
Cisco Systems H.323 String H323ESP, R0.2.4 Immediate Assigns to each version, Prov-addname=h245,masterSlave.timeout=5
Page 54 Page 56

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.