Cisco Systems H.323 System Configuration Data, Reverting to the Base Configuration, Example

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Chapter 3 Provisioning the Cisco HSI

Cisco HSI Configuration

Step 2 To display the entire configuration, issue the following command:

rtrv-config

To display a subset of the configuration, one can issue a command such as the following:

rtrv-config:sys_config_static

Step 3 To exit the MML command interpreter, issue the following command:

quit

Reverting to the Base Configuration

The following MML command examples show how to revert to the base HSI configuration:

Step 1 To begin an MML session, issue the following command:

mml

Step 2 To revert to the base HSI configuration, issue the following command:

restart-softw:init

Note The restart-softw:initcommand is derived from the initial installation script. (See Step 6 in the “Installing Cisco HSI” section on page 2-5.) To return to the configuration “myconf,” one would issue the command restart-softw:myconf.

System Configuration Data

System configuration data can be static or dynamic. Static data can be activated only at startup. Dynamic data can be activated during system run time.

Static System Data

To modify the static system data parameters in Table 3-3, use the sys_config_static MML name variable for the prov-add, prov-dlt, and prov-edcommands. Stop and restart the application for the changes to take effect.

In the following example, the prov-addcommand adds the static system data parameter

VSCA_PORT_NUMBER1 to a static configuration file. The prov-edcommand modifies the value of the VSCA_PORT_NUMBER1 parameter. The prov-dltcommand deletes the VSCA_PORT_NUMBER1 parameter from the static configuration file.

Example

prov-add:name=sys_config_static,vsca_port_number1=8003 prov-ed:name=sys_config_static,vsca_port_number1=8002 prov-dlt:name=sys_config_static,vsca_port_number1

The parameters in Table 3-3are written to a static configuration file or to a section within a file.

 

Cisco H.323 Signaling Interface User Guide

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OL-4806-01 Rev. A14

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Contents Provisioning the Cisco HSI MML Configuration Commands CommandCommand Description DescriptionInitiating an MML Session to Enable Dtmf on the HSI Introduction to MML Command Operation for HSIVerifying the Configuration System Configuration Data Reverting to the Base ConfigurationStatic System Data ExampleParameter Type Description Parameter, set it to Enabled Issue the command restart-softwconfirm Changing Static System DataParameter Description Default Dynamic System DataOVLDLEVEL1PERCENT OVLDLEVEL3PERCENTOVLDLEVEL1FILTER OVLDLEVEL1THRESHLOWERAlarmdebouncetime OVLDLEVEL3FILTEROVLDLEVEL3THRESHLOWER OVLDLEVEL3THRESHUPPERNonprovisionable Data MML Provisionable DataSystem Parameters ParametersParameter Name Description Type Example Update Type NullRAS Parameters Parameter Name Description Type ExampleAllowCallsWhenNonReg If this parameter is present, it String H323ESP Update Parameter Name TypeINTEGER0,1 Quick Reference for Important Parameters Codec SelectionParameter Name Parameter Value Description 14presents important static system data parameters Parameter Name Parameter Values Description VSCBIPADDR1/2 VSCBPORTNUMBER1/2HSI Feature Configuration Parameter Name Parameter ValueEmpty Capability Set Asymmetric Codec TreatmentHairpin Configuring T.38 Fax on the Cisco Pstn Gateway Configuring T.38 Fax on a Cisco IOS H.323 GatewayConfiguring T.38 Fax on a Cisco IOS Mgcp Gateway 38 FaxConfiguring Clear Channel on the Cisco HSI HSI Support for Tech PrefixesClear Channel Parameters Example Value Example Configuration Configuring G.726 on the Cisco HSI Parameter Example Value Configuration Example Configuring the Payload Type for the MgcpConfiguring Cisco HSI g726-generic OL-4806-01 Rev. A14 Configuring G.729 Annex and G.729 Annex B ParameterOL-4806-01 Rev. A14
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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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