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IP Telephony

Course outline 

 

Module 1: Introduction to Packet Voice Technologies

Traditional Telephony

Packetized Telephony Networks

IP Telephony Applications

Analog Voice Basics

Analog-to-Digital Voice Encoding

Signaling Systems

 

Module 2: Introduction to VoIP

Requirements of Voice in an IP Internetwork

Gateways and Their Roles

Encapsulating Voice in IP Packets

Calculating Bandwidth Requirements

 

Module 3: Configuring Voice Interfaces and Dial Peers

Configuring Voice Ports

Adjusting Voice Quality

Analog Voice Interfaces

Digital Voice Interfaces

Configuring Analog and Digital Voice Interfaces

Dial Peers

Call Setup and Digit Manipulation

Class of Restriction

Module 4: Voice Dial Plans

Call Establishment Principles

Configuring Dial Peers

Special-Purpose Connections

Building a Scalable Numbering Plan

Module 5: Configuring Cisco CallManager Express

Overview of Cisco CME

Cisco CME Voice Packet Handling Methods

Cisco CME Network Parameters

IP Phone Registration

Ephone-dn and Ephone

Cisco CallManager Express Files

Initial Phone Setup

Module 6: VoIP Signaling and Call Control

Need for Signaling and Call Control

Configuring H.323

Configuring MGCP

Module 7: Improving and Maintaining Voice Quality 

Quality of Service

Implementing AutoQoS

Comparing Voice Quality Measurement Standards

VoIP Challenges

QoS and Good Design

Jitter overview

Delay (be able to calculate that delay)

Applying QoS in the Campus

QoS Tools in the WAN

Configuring QoS in the WAN

Configuring CAC