Cisco CVOICE 6.0: Understanding VoIP Components and Requirements

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


Recognize the different requirements for VoIP calls, including quality of service, transportation of modulated data, and DTMF support

Target Audience

The target audience for this Learning Path will be established IT professionals with a solid, existing background in Cisco and networking technologies.


Prerequisites for this Learning Path are a valid CCNA certificate and a working knowledge of networking fundamentals, including LANs, WANs, and IP switching and routing. As well, basic internetworking skills and the ability to configure and operate Cisco routers and switches is essential. A working knowledge of traditional PSTN operation and technologies would be an asset.

Expected Duration

155 min.

Course Objectives

Cisco CVOICE 6.0: Understanding VoIP Components and Requirements

  • identify factors affecting the clarity of audio signals and recognize how to measure audio quality in VoIP networks.
  • recognize the concepts and implications of transporting modulated data over an IP network.
  • recognize how fax and modem pass-through and relay are implemented by gateway signaling protocols.
  • recognize how DTMF is supported on Cisco gateways.
  • determine an appropriate solution to quality issues on a VoIP network in a given scenario.
  • recognize the different codecs supported by Cisco gateways, the overheads in the transmission of packets, and how to calculate the total bandwidth for VoIP calls.
  • distinguish the functionality of DSPs and the impact of codec complexity on call density.
  • determine the DSP requirements and configuration for media resources.
  • identify and calculate the bandwidth requirements, and specify the functions and appropriate configuration of DSP implementation in a given scenario.