Implementing Cisco Voice Gateways and Gatekeepers

Course description
GWGK is an advanced course on implementing Cisco Voice Gateways and Gatekeepers in Enterprise or Service Provider environments. Passing the associated GWGK Exam is a requirement for the Cisco Certified Voice Over IP Professional (CCVP) Certfication.

The goal of the course is to provide students with information and practice activities to prepare them to install, configure, monitor and troubleshoot Cisco voice gateways and gatekeepers in Enterprise installations, in accord with the recommendations of Cisco's Solution Reference Network Design (SRND) for IP Telephony guides. Given a voice over IP design, the implementer will select an appropriate deployment model, correctly configure the Gateways and Gatekeepers (distributed or centralized), implement Call Plans, and decide how to implement the most commonly offered Service Provider or managed services applications, features, or implementation requirements.


Learning objectives
After you complete this course, you will be able to:

• Integrate gateways and gatekeepers into an enterprise IP telephony network with Cisco CallManager and Cisco Unity
• Select an appropriate deployment model
• Configure the gateways and gatekeepers (distributed or centralized)
• Design and implement call plans
• Select and implement service provider or managed services applications, features, and requirements

Who should attend
GWGK is designed for Cisco customers and Channel Partners who are working towards CCVP certification.


Recommended prerequisites

• CCNA certification
• Cisco Voice Over IP (CVOICE)
• Cisco IP Telephony Part 1 (CIPT1)

Course outline
Module 1: Gateway Deployments
Lesson 1: Introducing Gateways

• Gateway Functionality
• Gateway Hardware Platforms
• Gateway Signaling Protocols
• Comparing Signaling Protocols
• IP-to-IP Gateways

Lesson 2: Implementing H.323 Gateways

• Overview of H.323 Gateways
• H.323 Call Flow
• H.323 Advantages
• H.323 Configuration Considerations for DTMF
• H.323 Configuration Considerations for Fax Integration
• H.323 Commands
• Integrating H.323 Gateways with Cisco Unified CallManager
• Verifying an H.323 Integration with Cisco Unified CallManager

Lesson 3: Implementing MGCP Gateways

• Overview of MGCP Gateways
• MGCP Call Flow
• MGCP Advantages
• MGCP Configuration Considerations
• Basic MGCP Configuration
• MGCP Commands
• Integrating MGCP Gateways with Cisco Unified CallManager
• Verifying an MGCP Integration with Cisco Unified CallManager

Lesson 4: Implementing SIP Gateways

• Overview of SIP Gateways
• SIP Call Flow
• SIP Advantages
• SIP Integration Options
• SIP Configuration Considerations for DMTF
• SIP Commands
• Integrating Cisco IOS Gateways with SIP VoIP Networks
• Verifying an SIP Integration

Module 2: Cisco IP Communications PSTN and PBX Integrations
Lesson 1: Introducing PSTN and PBX Trunks

• Introduction to Trunks
• Hardware Requirements
• DSP Types and Codec Complexity
• Calculating DSP Resources
• Analog Trunks
• Digital Trunks
• Clocking for Digital Interfaces
• PSTN Trunks
• PBX Trunks

Lesson 2: Implementing Analog and Digital CAS Trunks

• Analog and Digital CAS Interfaces
• Configuring Analog PSTN Trunks
• FXO Power Failover
• Configuring E&M Trunks
• Verifying Analog Trunks
• T1 CAS Overview
• E1 R2 CAS
• Configuring E1 R2 Trunks
• Verifying CAS Trunks

Lesson 3: Implementing BRI and PRI Trunks

• BRI and PRI Interfaces
• Signaling for BRI and PRI Interfaces
• BRI and PRI Configuration Commands
• Configuring BRI Trunks
• Configuring PRI Trunks
• Verifying BRI and PRI Trunks

Lesson 4: Implementing QSIG Trunks

• QSIG Overview
• QSIG Support on Cisco IOS Gateways
• QSIG Support in Cisco Unified CallManager
• QSIG Configuration Commands
• Configuring QSIG in Cisco Unified CallManager Deployments
• Verifying QSIG Trunks

Module 3: Dial Plans on Cisco IOS Gateways
Lesson 1: Introducing Dial Plans

• Defining Dial Plans
• Endpoint Addressing
• Call Routing and Path Selection
• Digit Manipulation
• Calling Privileges
• Call Coverage

Lesson 2: Implementing PSTN Dial Plans

• PSTN Dial Plan Requirements
• ISDN Dial Plan Requirements
• Digit Manipulation
• Voice Translation Rules and Profiles
• Voice Translation Profiles vs. dialplan-pattern
• Digit Manipulation Commands
• Call Routing and Path Selection Commands
• Configuring PSTN Dial Plans
• Verifying PSTN Dial Plans

Lesson 3: Implementing Multisite Dial Plans on Cisco IOS Gateways

• Multisite Dial Plan Requirements
• Site-Code Dialing and Toll Bypass
• Configuring Site-Code Dialing and Toll Bypass
• Tailend Hop-Off
• Configuring TEHO

Lesson 4: Implementing RSVP-Based CAC

• Overview of RSVP-Based CAC
• Overview of RSVP
• RSVP CAC Flow
• RSVP Commands
• Configuring RSVP-Based CAC
• Verifying RSVP-Based CAC

Lesson 5: Implementing Calling Privileges on Cisco IOS Gateways

• Calling-Privilege Requirements
• Understanding COR on Cisco IOS Gateways
• COR for SRST and Cisco Unified CallManager Express
• COR Configuration Commands
• Configuring COR for Cisco Unified CallManager Express

Module 4: Advanced Gateway Features
Lesson 1: Implementing SRST Gateways

• Overview of SRST Gateways
• SRST Features and Capabilities
• SRST Operation Process
• SRST and Voice Mail
• Basic SRST Commands
• Optional SRST Commands
• Configuring SRST for SCCP Support
• Configuring Additional SRST Features for SCCP
• Reference
• SIP SRST Commands
• Configuring SIP SRST
• Verifying SRST Operation

Lesson 2: Implementing Media Resources Using Cisco IOS Gateway DSPs

• Media Resources on Cisco IOS Gateways
• DSP Requirements
• Cisco Unified CallManager and Media Resources
• SCCP Configuration Commands for Enhanced Media Resources
• DSP Farm Configuration Commands for Enhanced Media Resources
• Configuring Cisco Unified CallManager-Controlled Enhanced Media Resources
• Verifying Cisco Unified CallManager-Controlled Media Resources

Lesson 3: Implementing Fax and Modem Support on Cisco IOS Gateways

• Transporting Modulated Data over IP Networks
• Understanding Fax and Modem Pass-Through
• Understanding FAX and Modem Relay
• Gateway Signaling Protocols with Fax and Modem Pass-Through and Relay
• Understanding Store-and-Forward Fax
• Configuring Fax Pass-Through and Relay with Dial Peers
• Configuring FAX Pass-Through and Relay with MGCP Gateways
• Cisco Unified CallManager Interaction and Restriction

Lesson 4: Implementing Call Applications on Cisco IOS Gateways

• Call Applications Overview
• Introducing Tcl
• Call Application Syntax Changes
• Call Application Commands
• Configuring Call Applications
• Verifying Call Applications

Module 5: Gatekeeper Deployments
Lesson 1: Introducing Cisco Gatekeepers

• Cisco Gatekeeper Overview
• Gatekeeper Hardware and Software Requirements
• Gatekeeper Signaling
• Directory Gatekeepers
• Technology Prefix
• Gatekeeper Address Resolution Process
• Gatekeeper Call Routing
• Gatekeeper Transaction Message Protocol

Lesson 2: Implementing Basic Gatekeeper Functionality

• Single Gatekeeper-Multizone Configuration Scenario
• Gatekeeper Configuration Steps
• Configuring Zone Prefixes
• Configuring Technology Prefixes
• Registering Gateways
• Dial Peer Configuration
• Preventing Ephone and Dial-Peer Registration
• Registering a Cisco Unified CallManager Cluster
• Verifying Basic Gatekeeper Functionality

Lesson 3: Implementing Gatekeeper-Based CAC

• Gatekeeper Zone Bandwidth Operation
• Gatekeeper in Cisco Unified CallManager Networks
• Zone Bandwidth Calculation
• Zone Bandwidth Configuration
• Verifying Zone Bandwidth Operation
• RAI in Gatekeeper Networks
• RAI Configuration
• RAI Command
• Verifying RAI Operation

Lesson 4: Implementing Advanced Gatekeeper Functionality

• Multiple Gatekeepers
• Interconnecting Gatekeepers
• Configuring Directory Gatekeepers
• Restricting Gatekeeper Registration
• Verifying Advanced Gatekeeper Functionality

Lesson 5: Implementing Gatekeeper Redundancy

• Gatekeeper Redundancy Options
• Comparing HSRP with Gatekeeper Clusters
• Configuring Gatekeeper HSRP
• GUP Configuration Commands
• Configuring a GUP Gatekeeper Cluster
• Verifying Gatekeeper Clustering Operation

Module 6: IP-to-IP Gateway Enterprise Deployments
Lesson 1: Introducing IP-to-IP Gateways

• IP-to-IP Gateway Functionality
• Cisco IOS Image Support for IP-to-IP Gateways
• IP-to-IP Gateways in Enterprise Environments
• Protocol Interworking on IP-to-IP Gateways
• Media Flows on IP-to-IP Gateways
• Codec Filtering on IP-to-IP Gateways
• RSVP-Based CAC on IP-to-IP Gateways
• IP-to-IP Gateways and Gatekeeper Interworking
• IP-to-IP Gateway Call Flows

Lesson 2: Implementing IP-to-IP Gateways

• Protocol Interworking Command
• Configuring H.323-to-H.323 Interworking
• Configuring H.323-to-SIP Interworking
• Media Flow and Transparent Codec Commands
• Configuring Transparent Codec Pass-Through and Media Flow-Around
• Configuring IP-to-IP Gateways and Via-Zone Gatekeepers
• Verifying IP-to-IP Gateways and Via-Zone Gatekeepers

Course labs
Lab 1-1: Implementing H.323 Gateways
Lab 1-2: Implementing MGCP Gateways
Lab 1-3: Implementing SIP Gateways
Lab 2-1: Implementing Analog Trunks
Lab 2-2: Implementing CAS Trunks
Lab 2-3: Implementing PRI Trunks
Lab 2-4: Implementing QSIG Trunks
Lab 3-1: Implementing PSTN Dial Plans on Cisco IOS Gateways
Lab 3-2: Implementing Multisite Dial Plans on Cisco IOS Gateways
Lab 3-3: Implementing RSVP-Based CAC
Lab 3-4: Implementing Calling Privileges on Cisco IOS Gateways
Lab 4-1: Implementing SRST Gateways
Lab 4-2: Implementing Media Resources Using Cisco IOS Gateway DSPs
Lab 4-3: Implementing Call Applications on Cisco IOS Gateways
Lab 5-1: Implementing Basic Gatekeeper Functionality
Lab 5-2: Implementing Gatekeeper-Based CAC
Lab 5-3: Configuring Remote Zones
Lab 5-4: Implementing Gatekeeper Redundancy
Lab 6-1: Implementing IP-to-IP Gateways