Cisco Systems H.323 appendix MML Configuration Commands, Command Description

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Chapter 3 Provisioning the Cisco HSI

Cisco HSI Configuration

HSI starts up, it attempts to read the active configuration, checks that the configuration has been verified, and ensures that the checksum matches. If the active configuration is not verified or if the checksum is faulty, the configuration reverts to using the $GWHOME/currentGW/etc/GWmain.conf file.

All configuration data that can be set in the system is defined in the Skeleton Configuration file (see Appendix B, “Skeleton Configuration File”). The Skeleton Configuration file defines the data names and types (strings or numbers), and defines whether the data is dynamic, static, or constant.

MML Configuration Commands

There are three types of MML configuration command:

•Configuration session commands that work with entire provisioning data files (see Table 3-1)

•Configuration component or parameter commands that perform actions on components or parameters affecting a specific data file (see Table 3-2)

•Configuration export commands

For more information about MML configuration commands, see Appendix A, “MML User Interface and Command Reference.”

Note Parameter names used in MML commands are not case sensitive.

Table 3-1 Configuration Session Commands

Command

prov-sta

prov-cpy

prov-stp

Description

Starts a provisioning session to create a new configuration or modify an existing configuration

Activates the configuration settings in the current provisioning session

Terminates the provisioning session and saves the configuration

Table 3-2 Configuration Component or Parameter Commands

Command

Description

 

 

prov-add

Adds a component to the Cisco HSI

 

 

prov-dlt

Deletes a provisioned component

 

 

prov-ed

Modifies a provisioned component

 

 

prov-rtrv

Retrieves information about an existing provisioning session

 

 

The configuration export command is prov-exp, which exports the currently provisioned configuration of the Cisco HSI to 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 Command Description MML Configuration CommandsCommand DescriptionVerifying the Configuration Introduction to MML Command Operation for HSIInitiating an MML Session to Enable Dtmf on the HSI Static System Data System Configuration DataReverting to the Base Configuration ExampleParameter Type Description Parameter, set it to Enabled Issue the command restart-softwconfirm Changing Static System DataParameter Description Default Dynamic System DataOVLDLEVEL1FILTER OVLDLEVEL1PERCENTOVLDLEVEL3PERCENT OVLDLEVEL1THRESHLOWEROVLDLEVEL3THRESHLOWER AlarmdebouncetimeOVLDLEVEL3FILTER OVLDLEVEL3THRESHUPPERSystem Parameters Nonprovisionable DataMML Provisionable Data 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 Parameter Name Parameter Value Description Codec SelectionQuick Reference for Important Parameters 14presents important static system data parameters Parameter Name Parameter Values Description VSCBIPADDR1/2 VSCBPORTNUMBER1/2HSI Feature Configuration Parameter Name Parameter ValueHairpin Asymmetric Codec TreatmentEmpty Capability Set Configuring T.38 Fax on a Cisco IOS Mgcp Gateway Configuring T.38 Fax on the Cisco Pstn GatewayConfiguring T.38 Fax on a Cisco IOS H.323 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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