Introduction to Cisco Voice Design Concepts

This course is included in our On-demand training solution.


To identify voice design principles and outline guidelines for successful integrated network deployment

Target Audience

Network engineers, network system analysts, and maintenance personnel responsible for designing small to medium-sized and enterprise networks; individuals seeking the Cisco Certified Design Associate (CCDA) certification and those individuals targeting towards the Cisco Certified Design Professional (CCDP) certification


The knowledge and skills contained in the Interconnecting Cisco Network Devices (ICND) and CCNA Basics learning paths; a good foundation in the principles and concepts of networks and computers; familiarity with internetworking technologies

Expected Duration

300 min.

Course Objectives

Introduction to Cisco Voice Design Concepts

  • differentiate between analog and digital signaling and recognize their impact on voice transmission.
  • identify the components and features of the telephone network.
  • recognize how PSTN numbering plans work and identify the role of PSTN features and how they are implemented.
  • identify reasons for implementing converged voice and data networking and identify the components in converged networks.
  • identify the most common IP telephony designs and show how voice-enabled routing is utilized in its implementation.
  • identify issues relating to voice in packet networks and list and recognize the most frequent coding and transport control mechanisms.
  • identify Voice over Frame Relay and ATM implementations and list their benefits.
  • list and identify components of packet voice networks in enterprise networks.
  • identify and minimize network delays, and estimate the number of simultaneous calls using a certain coding type on a WAN link.
  • list the QoS mechanisms and identify their impact on voice quality.
  • identify network delay and bandwidth issues and determine how to resolve them in a given scenario.
  • differentiate between on-net and off-net calling and outline how they can be used to minimize voice communication costs.
  • calculate the probability of a voice call being blocked and determine the number of circuits required for an acceptable Grade of Service.
  • recognize the impact of coding mechanisms on resource planning and identify the key considerations in planning WAN capacity for voice.
  • identify best practices for IP telephony capacity planning.
  • show the effect of transporting voice traffic across data networks in a given scenario.