Cisco Signaling Interface H.323 User manual

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Cisco H.323 Signaling Interface User
Guide
Cisco HSI Release 4.1
November 2007
Text Part Number: OL-4806-01 Rev. A14

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Cisco H.323 Signaling Interface User Guide
Copyright © 2007 Cisco Systems, Inc. All rights reserved.
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CONTENTS
Preface 13
Document Objectives 13
Audience 13
System Administrator 13
System Operator 14
System Technician 14
Document Organization 14
Document Conventions 15
Related Documentation 16
Release Notes 16
Hardware Documentation 16
Software Documentation 17
Related Documentation 17
Obtaining Documentation 17
World Wide Web 17
Documentation CD-ROM 17
Ordering Documentation 18
Documentation Feedback 18
Obtaining Technical Assistance 18
Cisco.com 18
Technical Assistance Center 19
Cisco TAC Web Site 19
Cisco TAC Escalation Center 20
CHAPTER 1Cisco H.323 Signaling Interface Overview 1
Introduction 1
Cisco HSI Overview 1
PGW 2200 2
IP Network 2
Cisco HSI System Description 2
OAM Subsystem 3
Call Control Subsystem 3
RUDP 4
RADVision H.323 4

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E-ISUP 4
New Features in Cisco HSI Release 4.1 4
Operational Environment 4
Hardware Requirements 4
Software Requirements 5
Security 5
Cisco HSI Recovery 5
Cisco HSI System Limitations 5
CHAPTER 2Installing and Configuring Cisco HSI Software 1
Introduction 1
Hardware and Software Requirements 1
Installing the Operating System 1
Installing the Cisco HSI 2
Before You Start 2
Configuring Groups and Users 2
Cisco HSI Installation Information 3
Installing Cisco HSI 5
Installing Multiple Cisco HSIs in a Redundant PGW 2200 Configuration 10
Dual HSI Example Configuration Script 11
Starting the Cisco HSI 11
Stopping the Cisco HSI 12
Configuring the Cisco HSI 12
Upgrading the Cisco HSI 12
Removing the Cisco HSI 13
CHAPTER 3Provisioning the Cisco HSI 1
Introduction 1
Cisco HSI Configuration 1
MML Configuration Commands 2
Introduction to MML Command Operation for HSI 3
Initiating an MML Session to Enable DTMF on the HSI 3
Verifying the Configuration 3
Reverting to the Base Configuration 4
System Configuration Data 4
Static System Data 4
Changing Static System Data 7
Dynamic System Data 8

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H.323 Stack Configuration 10
Nonprovisionable Data 11
MML Provisionable Data 11
H.323 System Parameters 11
Q.931 Parameters 11
RAS Parameters 13
H.245 Parameters 15
Codec Selection 18
Quick Reference for Important Parameters 18
HSI Feature Configuration 22
Asymmetric Codec Treatment 23
Empty Capability Set 23
H.323 Hairpin 23
T.38 Fax 24
Configuring T.38 Fax on the Cisco PSTN Gateway 24
Configuring T.38 Fax on a Cisco IOS H.323 Gateway 24
Configuring T.38 Fax on a Cisco IOS MGCP Gateway 24
HSI INFORMATION Message Support 24
HSI Support for Tech Prefixes 25
Configuring Clear Channel on the Cisco HSI 25
Configuring G.726 on the Cisco HSI 27
Configuring G.729 Annex and G.729 Annex B 31
CHAPTER 4Managing the Cisco HSI 1
Introduction 1
Restarting the Cisco HSI Application 1
Stopping Call Processing 1
Starting Call Processing 2
Stopping the Call Processing Application 2
Starting the Call Processing Application 2
Reporting the Cisco HSI Status 2
Measurements 2
System-Related Measurements 2
Call-Related Measurements 3
Resetting Measurements 6
Retrieving Counters 6
Overload 6
Overload Level 1 7

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Overload Level 2 7
Overload Level 3 7
Setting Overload Data 8
Retrieving Overload Data 8
Logging 9
Rotating Log Files 9
Convention for Naming the Log File 9
Log File Location 9
Log Messages 10
Log Message Packages 10
Logging Levels 10
Setting Logging Levels 11
RADVision Logging 11
Gapping 11
Setting Gapping 11
Retrieving Call Gapping Data 12
CHAPTER 5Troubleshooting Cisco HSI Alarms 1
Introduction 1
Alarms Overview 1
Debounce 1
Alarm Severity Levels 1
Retrieving and Reporting Alarms 2
Informational Event Requirements 2
SNMP Trap Types 2
Retrieving Alarm Messages 3
Noncontinuous Mode 3
Continuous Mode 3
Acknowledging and Clearing Alarms 4
Alarms List 5
Troubleshooting 6
H323_STACK_FAILURE 6
Description 6
Severity Level and Trap Type 6
Cause 6
Troubleshooting 6
CONFIGURATION_FAILURE 6
Description 6
Severity Level and Trap Type 6

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Cause 7
Troubleshooting 7
EISUP_PATH_FAILURE 7
Description 7
Severity Level and Trap Type 7
Cause 7
Troubleshooting 7
GATEKEEPER_INTERFACE_FAILURE 8
GENERAL_PROCESS_FAILURE 8
Description 8
Severity Level and Trap Type 8
Cause 8
Troubleshooting 8
IP_LINK_FAILURE 8
Description 8
Severity Level and Trap Type 8
Cause 8
Troubleshooting 9
LOW_DISK_SPACE 9
Description 9
Severity Level and Trap Type 9
Cause 9
Troubleshooting 9
OVERLOAD_LEVEL3 9
Description 9
Severity Level and Trap Type 9
Cause 10
Troubleshooting 10
VSC_FAILURE 10
Description 10
Severity Level and Trap Type 10
Cause 10
Troubleshooting 10
OVERLOAD_LEVEL2 11
Description 11
Severity Level and Trap Type 11
Cause 11
Troubleshooting 11
CONFIG_CHANGE 11
Description 11

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Severity Level and Trap Type 11
Cause 11
Troubleshooting 11
ENDPOINT_CALL_CONTROL_INTERFACE_FAILURE 12
Description 12
Severity Level and Trap Type 12
Cause 12
Troubleshooting 12
ENDPOINT_CHANNEL_INTERFACE_FAILURE 12
Description 12
Severity Level and Trap Type 12
Cause 12
Troubleshooting 12
GAPPED_CALL_NORMAL 13
Description 13
Severity Level and Trap Type 13
Cause 13
Troubleshooting 13
GAPPED_CALL_PRIORITY 13
Description 13
Severity Level and Trap Type 13
Cause 13
Troubleshooting 14
OVERLOAD_LEVEL1 14
Description 14
Severity Level and Trap Type 14
Cause 14
Troubleshooting 14
PROVISIONING_INACTIVITY_TIMEOUT 14
Description 14
Severity Level and Trap Type 14
Cause 15
Troubleshooting 15
PROVISIONING_SESSION_TIMEOUT 15
Description 15
Severity Level and Trap Type 15
Cause 15
Troubleshooting 15
STOP_CALL_PROCESSING 15
Description 15

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Severity Level and Trap Type 15
Cause 15
Troubleshooting 16
Detailed Logging 16
APPENDIX AMML User Interface and Command Reference 1
Introduction 1
Starting an MML Command Session in the Cisco HSI 1
MML Commands 2
MML Command Syntax 2
MML Command Conventions 2
Case Sensitivity 3
Starting an MML Session 3
Batch Files 4
Creating a Batch File 4
Starting a Batch File 4
MML Responses 5
Status Messages 5
Error Messages 6
MML Help 6
Quitting an MML Session 6
MML Command Reference 7
ack-alm 8
clr-alm 9
clr-meas 9
diaglog 10
h11
help 11
prov-add 13
prov-cpy 14
prov-dlt 15
prov-ed 16
prov-exp 17
prov-rtrv 18
prov-sta 20
prov-stp 21
quit 23

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radlog 23
restart-softw 24
rtrv-alms 25
rtrv-calls 26
rtrv-ctr 26
rtrv-dest 27
rtrv-gapping 28
rtrv-log 28
rtrv-mml 29
rtrv-ne 30
rtrv-ne-health 30
rtrv-overload 31
rtrv-softw 32
set-dest-state 33
set-gapping 34
set-log 35
set-overload 36
sta-callproc 37
sta-softw 37
sta-trc 38
stp-call 39
stp-callproc 40
stp-softw 40
stp-trc 41

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APPENDIX BSkeleton Configuration File 1
APPENDIX CExample of an HSI Configuration File 1
APPENDIX DE-ISUP Name-to-Cause Value Lookup 1
APPENDIX EE-ISUP Cause Value-to-Name Lookup 1
APPENDIX FH.323 Name-to-Cause Value Lookup 1
APPENDIX GH.323 Cause Value-to-Name Lookup 1
I NDEX

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Preface
This preface describes the objectives, audience, organization, and conventions of the Cisco H.323
Signaling Interface User Guide, and explains how to find additional information on related products and
services. It contains the following sections:
• Document Objectives, page 13
• Audience, page 13
• Document Organization, page 14
• Document Conventions, page 15
• Related Documentation, page 16
• Obtaining Documentation, page 17
• Obtaining Technical Assistance, page 18
Document Objectives
This guide contains installation, configuration, system management, troubleshooting, and Man-Machine
Language (MML) command information for the Cisco H.323 Signaling Interface (HSI).
This version of the Cisco H.323 Signaling Interface User Guide documents the Cisco H.323 Signaling
Interface (HSI) software, Release 4.1. Cisco HSI, Release 4.1 is associated with the Cisco Media
Gateway Controller Software, Release 9.4(1).
Audience
The intended audience is the system administrator, the system operator, and the system technician.
System Administrator
The system administrator is required to manage the host administrative functions, including:
• Configuring and maintaining system parameters
• Granting group and user IDs
• Managing all Cisco Public Switched Telephone Network (PSTN) Gateway (PGW 2200) files and
directories

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Preface
Document Organization
The system administrator should have an in-depth knowledge of UNIX and a basic knowledge of data
and telecommunications networking.
System Operator
The system operator is assumed to have knowledge of the following:
• Telecommunications protocols
• Basic computer software operations
• Computer terminology and concepts
• Hierarchical file systems
• Common UNIX shell commands
System Technician
The system technician is assumed to have knowledge of the following:
• Telecommunications protocols
• Basic computer software operations
• Computer terminology and concepts
• Hierarchical file systems
• Common UNIX shell commands
• Log files
• Configuration of telephony switching systems
• Use of electrical and electronic telephony test equipment
• Basic troubleshooting techniques
Document Organization
This document is organized as follows:
• Preface
• Chapter 1, “Cisco H.323 Signaling Interface Overview.”
• Chapter 2, “Installing and Configuring Cisco HSI Software”
• Chapter 3, “Provisioning the Cisco HSI”
• Chapter 4, “Managing the Cisco HSI”
• Chapter 5, “Troubleshooting Cisco HSI Alarms”
• Appendix A, “MML User Interface and Command Reference”
• Appendix B, “Skeleton Configuration File”
• Appendix C, “Example HSI Configuration File”
• Appendix D, “E-ISUP Name-to-Cause Value Lookup”

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Document Conventions
• Appendix E, “E-ISUP Cause Value-to-Name Lookup”
• Appendix F, “H.323 Name-to-Cause Value Lookup”
• Appendix G, “H.323 Cause Value-to-Name Lookup”
Document Conventions
This manual uses the document conventions listed in this section.
Ta b l e 1 Document Conventions
Convention Meaning Comments and Examples
Boldface Commands and keywords you
enter literally as shown
prov-sta
Italics Variables for which you supply
values
command interface type
You replace the variable with
the type of interface.
Courier Font used for screen displays,
prompts, and scripts.
Are you ready to continue?
[Y]
Courier bold Font used to indicate what the user
enters in examples of command
environments.
Login: root
Password: <password>
Square brackets ([ ]) Optional elements command [abc]
abc is optional (not required),
but you can choose it.
Vertical bars ( | ) Separated alternative elements command [abc | def]
You can choose either abc or
def, or neither, but not both.
Braces ({ }) Required choices command {abc | def}
You must use either abc or def,
but not both.
Braces with vertical bars within
square brackets ([{ | }])
A required choice within an
optional element
command [abc{ def | ghi}]
You have three options:
• No entry
• abc def
• abc ghi
A string A nonquoted set of characters For example, when setting an
SNMP community string to
public, do not use quotation
marks around the string;
otherwise, the string will
include the quotation marks.

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Related Documentation
Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the
manual.
Tip Means the following information will help you solve a problem. The tip information might not be
troubleshooting or even an action, but could be useful information, similar to a Timesaver.
Caution Means reader be careful. In this situation, you might do something that could result in equipment
damage or loss of data.
Related Documentation
The following sections provide the titles of documents related to the Cisco H.323 Signaling Interface
User Guide.
Release Notes
For information regarding subsequent releases of the Cisco H.323 signaling interface, refer to:
• Release Notes for Cisco H.323 Signaling Interface Release 4.1 and Related Patches
Hardware Documentation
• Cisco Media Gateway Controller Hardware Installation Guide
• Regulatory Compliance and Safety Information for Cisco Media Gateway Controller
• Cisco Media Gateway Hardware Installation Guide
System prompt Denotes interactive sessions;
indicates that the user enters
commands at the prompt
The system prompt indicates
the current command mode.
For example, the prompt
Router (config)# indicates
global configuration mode.
Exclamation point (!) at the
beginning of a line
A comment line Comments are sometimes
displayed.
Table 1 Document Conventions (continued)
Convention Meaning Comments and Examples

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Obtaining Documentation
Software Documentation
• Cisco Media Gateway Controller Software Release 9 Installation and Configuration Guide
• Cisco Media Gateway Controller Software Release 9 Provisioning Guide
• Cisco Media Gateway Controller Software Release 9 MML Command Reference Guide
• Cisco Media Gateway Controller Software Release 9 Messages Reference Guide
• Cisco Media Gateway Controller Software Release 9 Billing Interface Guide
• Cisco Media Gateway Controller Software Release 9 Operations, Maintenance, and
Troubleshooting Guide
• Cisco Media Gateway Controller Software Release 9 Management Information Base Guide
• Cisco Media Gateway Controller Node Manager User’s Guide 2.0
• Cisco Signaling Link Terminal
• Cisco Media Gateway Controller Online Documentation Notice
• Cisco Media Gateway Controller SLT Documentation Notice
Related Documentation
• ITU Recommendation H.323, 2000
• ITU Recommendation H.225, 2001
• ITU Recommendation H.245, 2000
• ITU Recommendation H.246 Annex C
Obtaining Documentation
These sections explain how to obtain documentation from Cisco Systems.
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at this URL:
http://www.cisco.com
Translated documentation is available at this URL:
http://www.cisco.com/public/countries_languages.shtml
Documentation CD-ROM
Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM
package, which is shipped with your product. The Documentation CD-ROM is updated monthly and may
be more current than printed documentation. The CD-ROM package is available as a single unit or
through an annual subscription.

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Obtaining Technical Assistance
Ordering Documentation
You can order Cisco documentation in these ways:
• Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from
the Networking Products MarketPlace:
http://www.cisco.com/cgi-bin/order/order_root.pl
• Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription
Store:
http://www.cisco.com/go/subscription
• Nonregistered Cisco.com users can order documentation through a local account representative by
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in North America, by calling 800 553-NETS (6387).
Documentation Feedback
You can submit comments electronically on Cisco.com. In the Cisco Documentation home page, click
the Fax or Email option in the “Leave Feedback” section at the bottom of the page.
You can e-mail your comments to [e-mail].
You can submit your comments by mail by writing to the following address:
Cisco Systems
Attn: Document Resource Connection
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San Jose, CA 95134-9883
We appreciate your comments.
Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can
obtain online documentation, troubleshooting tips, and sample configurations from online tools by using
the Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access
to the technical support resources on the Cisco TAC Web Site.
Cisco.com
Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open
access to Cisco information, networking solutions, services, programs, and resources at any time, from
anywhere in the world.
Cisco.com is a highly integrated Internet application and a powerful, easy-to-use tool that provides a
broad range of features and services to help you with these tasks:
• Streamline business processes and improve productivity
• Resolve technical issues with online support
• Download and test software packages
• Order Cisco learning materials and merchandise

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Obtaining Technical Assistance
• Register for online skill assessment, training, and certification programs
If you want to obtain customized information and service, you can self-register on Cisco.com. To access
Cisco.com, go to this URL:
http://www.cisco.com
Technical Assistance Center
The Cisco Technical Assistance Center (TAC) is available to all customers who need technical assistance
with a Cisco product, technology, or solution. Two levels of support are available: the Cisco TAC
Web Site and the Cisco TAC Escalation Center.
Cisco TAC inquiries are categorized according to the urgency of the issue:
• Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities,
product installation, or basic product configuration.
• Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably
impaired, but most business operations continue.
• Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects
of business operations. No workaround is available.
• Priority level 1 (P1)—Your production network is down, and a critical impact to business operations
will occur if service is not restored quickly. No workaround is available.
The Cisco TAC resource that you choose is based on the priority of the problem and the conditions of
service contracts, when applicable.
Cisco TAC Web Site
You can use the Cisco TAC Web Site to resolve P3 and P4 issues yourself, saving both cost and time.
The site provides around-the-clock access to online tools, knowledge bases, and software. To access the
Cisco TAC Web Site, go to this URL:
http://www.cisco.com/tac
All customers, partners, and resellers who have a valid Cisco service contract have complete access to
the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a
Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or
password, go to this URL to register:
http://www.cisco.com/register/
If you are a Cisco.com registered user, and you cannot resolve your technical issues by using the Cisco
TAC Web Site, you can open a case online by using the TAC Case Open tool at this URL:
http://www.cisco.com/tac/caseopen
If you have Internet access, we recommend that you open P3 and P4 cases through the Cisco TAC
Web Site.

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Obtaining Technical Assistance
Cisco TAC Escalation Center
The Cisco TAC Escalation Center addresses priority level 1 or priority level 2 issues. These
classifications are assigned when severe network degradation significantly impacts business operations.
When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer
automatically opens a case.
To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to this URL:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml
Before calling, please check with your network operations center to determine the level of Cisco support
services to which your company is entitled: for example, SMARTnet, SMARTnet Onsite, or Network
Supported Accounts (NSA). When you call the center, please have available your service agreement
number and your product serial number.