Chapter 7. WAN Protocols and Technologies: Integrated Services Digital Network (ISDN)

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Lab 15: Configuring Voice over Frame, Voice over IP, and Voice over ATM

Practical Scenario

Voice over X is a growing technology. We strongly suggest modeling any voice networks in a lab scenario before deploying them in production. This will allow you to have a strong understanding of the configuration required before it is in a production environment. Essentially, we are configuring toll bypass. Toll bypass involves placing a voice call over the IP network so that toll charges are not incurred. All the lab modules that follow are configuring toll bypass in one form or another. They represent the first step in moving toward a multiservice converged internetwork.

Lab Exercise

This lab is treated in modules that allow you to model the following:

  • Voice over Frame

  • Voice over IP

  • Voice over ATM

Lab Objectives

  • In the lab exercises, you configure toll bypass using the following methods :

  • Using Voice over Frame Relay. Configure the Frame Relay network in Figure 6-26 so that voice calls can be placed from one router to the next .

    Figure 6-26. Voice over Frame Relay Lab

    graphics/06fig26.gif

  • Using Voice over IP across a Frame Relay network. Configure the network in Figure 6-27 so that voice calls can be placed from one router to the next.

    Figure 6-27. Voice over Frame Relay Lab

    graphics/06fig27.gif

  • Using a point-to-point voice over ATM application and, as an optional exercise, a private line automatic ring down (PLAR) application. Configure the network in Figure 6-28 so that voice calls can be placed from one router to the next.

    Figure 6-28. Voice over Frame Relay Lab

    graphics/06fig28.gif

The lab is divided into three portions, Voice over Frame, Voice over IP, and Voice over ATM. The Voice over Frame and Voice over IP configurations build upon each other. The walkthrough for each lab is presented.

Equipment Needed

  • Two Cisco voice-capable routers, each with a foreign exchange station (FXS) interface where you will connect your analog phone sets. We used Cisco 3600s in our labs, but the Cisco 2600s will work nicely as well.

  • A Cisco router such as a Cisco 2600 series (something with two serial interfaces) that you will use as your frame relay switch.

  • Two analog phone sets.

  • For the ATM portion of the lab, two Cisco voice-capable routers, each with an FXS interface where you will connect your analog phone sets. Each should have at least one ATM interface for the point-to-point connection.

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CCIE Practical Studies, Volume I
CCIE Practical Studies, Volume I
ISBN: 1587200023
EAN: 2147483647
Year: 2001
Pages: 283
Authors: Karl Solie

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