Guest

H.323

Introduction

Extension of ITU-T standard H.320 that enables videoconferencing over LANs and other packet-switched networks, as well as video over the Internet.
Configure

Configuration Examples and TechNotes

(All Gateway Protocols Configuration Examples and TechNotes)

Audio Codec Configuration on H.323 Signaling Interface (HSI)

Basic Two Zone Cisco Gateway-to-Gatekeeper Configuration

CDR Logging Configuration with Syslog Servers and Cisco IOS Gateways

Cisco CallManager 3.3 Gatekeeper Configuration

Cisco CallManager and H.323 Gateway Interaction Issues

Cisco IOS Gatekeepers in Intrazone H.323 Networks Configuration Example

Cisco IOS H.323 Gateway Configuration for Use with Cisco CallManager

Cisco IOS Telephony Service (ITS) Configuration and Troubleshooting

Cisco IOS, Phone, UCM and CUC Packet, and PCM Captures Command Reference

Configuring Basic Gatekeeper Call Admission Control

Configuring Connection PLAR for VoIP Gateways

Configuring Connection Trunk for VoIP Gateways (ZIP - 53 KB)

Configuring Hookflash Relay on FXS/FXO Voice Ports

Configuring an Anonymous Device Gatekeeper with Cisco CallManager Versions 3.3 and 4.1

Configuring and Troubleshooting an ATA 186 with a Cisco IOS Gateway (ZIP - 152 KB)

Designing and Deploying VoIP over ISDN

Enhanced Transcoding and Conferencing for IOS Voice Gateways in a CallMananger Network using DSP Resources Configuration Example

Frame Relay Traffic Shaping for VoIP and VoFR

H.320 Gateway to H.323 Gatekeeper Video Call Flow

H.323 Gateway Dial-Peer Configuration for Cisco CallManager Server Redundancy

H.323 Video Call Flow Across CUBE and Cisco Gatekeeper

Hookflash Transfer in MGCP

How to Configure Video over IP for Polycom Video Units

How-to Configure Microsoft NetMeeting with Cisco IOS Gateways (ZIP - 72 KB)

Implementing QoS Solutions for H.323 Video Conferencing over IP

Local to Remote Network Using the Cisco Multiservice IP-to-IP Gateway Feature

MGCP Gateway Fallback Transition to Default H.323 Session Application

Nortel PBX Option 11 E&M Trunk Card Configuration Example

PIX/ASA 7.x: Enable VoIP (SIP, MGCP, H323, SCCP) Services Configuration Example

Remote to Local Network with the Cisco Multiservice IP-to-IP Gateway Feature

Troubleshooting No Dial Tone Issues

Understanding Cisco IOS Gatekeeper Call Routing

Understanding Codecs: Complexity, Hardware Support, MOS, and Negotiation

Understanding Direct-Inward-Dial (DID) on IOS Voice Digital (T1/E1) Interfaces

Understanding, Configuring and Troubleshooting Resource Allocation Indication

VoIP QoS for Frame Relay to ATM Interworking with LLQ, PPP LFI and cRTP

VoIP over Frame Relay with Multipoint PVCs and Prioritization

VoIP over Frame Relay with Quality of Service (Fragmentation, Traffic Shaping, LLQ / IP RTP Priority)

VoIP over PPP Links with Quality of Service (LLQ / IP RTP Priority, LFI, cRTP)

VoIP with Channel Associated Signaling (CAS)

VoIP with Common Channel Signaling (CCS)

VoIP with Gatekeeper

VoIP with IVR

VoIP with PPP over High Bandwidth Leased Line and LLQ

Zone Prefix Processing with Dots Versus Asterisks

Troubleshoot and Alerts

Troubleshooting TechNotes

(All Gateway Protocols Troubleshooting TechNotes)

Analog E&M Troubleshooting Guidelines (Cisco IOS Platforms)

Analog E&M Voice Signaling Overview

CDR Logging Configuration with Syslog Servers and Cisco IOS Gateways

Call Failure to Long Distance/Mobile Destination

Cisco CallManager and H.323 Gateway Interaction Issues

Cisco IOS, Phone, UCM and CUC Packet, and PCM Captures Command Reference

Defining Analog Voice

Designing and Deploying VoIP over ISDN

E&M Cable Pinouts Connecting Cisco 1750/2600/3600 E&M VIC to Lucent PBX G3R E&M Trunk

E&M Cable Pinouts to Connect Cisco 1750/2600/3600 E&M VIC to Nortel PBX Option 11 E&M Trunk

Frame Relay Traffic Shaping for VoIP and VoFR

H.323 T.38 Fax Relay Issues

Identify, Supersede, and Maintain Compatible DSP Firmware Version Levels on C5510 DSPs (PDF - 78 KB)

Implementing QoS Solutions for H.323 Video Conferencing over IP

MGCP and H.323 Voice Gateway Protocol Comparison

PSTN Callers not Hearing any Ring Back When they Call IP Phones

Third Party H323 Calls Fail with Cisco IOS Later than 12.2(8)T

Toll-Fraud Prevention Feature in IOS Release 15.1(2)T

Troubleshooting DSPs on the PA-VXA/PA-VXB/PA-VXC T1/E1 Voice Port Adaptors and the PA-MCX MIX-Enabled Multichannel T1/E1 Port Adaptors for Cisco 7200/7400/7500 Series Routers

Troubleshooting GUP, Alternate Endpoint and Load Balancing

Troubleshooting Gatekeeper Endpoint Call Admission Issues

Troubleshooting Gatekeeper Registration Issues

Troubleshooting ISDN Call Failures Originated from NetMeeting or Similar 3rd Party H.323 Devices

Troubleshooting No Busy Tone and No Announcement Messages on ISDN-VoIP (H.323) Calls

Troubleshooting No Dial Tone Issues

Troubleshooting No Ringback Tone on ISDN-VoIP (H.323) Calls

Troubleshooting One Way Voice Issues

Troubleshooting Voice Connection Trunks

Troubleshooting and Debugging VoIP Call Basics

Understanding Cisco IOS Gatekeeper Call Routing

Understanding Codecs: Complexity, Hardware Support, MOS, and Negotiation

Understanding Direct-Inward-Dial (DID) on IOS Voice Digital (T1/E1) Interfaces

Understanding H.323 Gatekeepers

Understanding Inbound and Outbound Dial Peers on Cisco IOS Platforms

Understanding and Troubleshooting Gatekeeper TTL and Aging out Process

Understanding, Configuring and Troubleshooting Resource Allocation Indication

VoIP over PPP Links with Quality of Service (LLQ / IP RTP Priority, LFI, cRTP)

Voice Design and Implementation Guide

Waveform Coding Techniques

Zone Prefix Processing with Dots Versus Asterisks