Introducing Voice Over IP

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


To identify the components and signalling protocols of VoIP, recognize how VoIP works with the centralized and distributed architectures, and determine the gateway requirements to support both architectures in enterprise and service provider environments

Target Audience

IT professionals responsible for preparing, configuring, and maintaining a voice and data network; candidates preparing for the Cisco Certified Voice Professional certification (CVOICE 642-432)


Working knowledge of LANs, WANs, and IP switching and routing; an understanding of traditional public switched telephone network operations and technologies; internetworking skills covered in the Interconnecting Cisco Network Devices (ICND) course; Cisco Voice Fundamentals (CVF) v1.0 e-learning course completion

Expected Duration

150 min.

Course Objectives

Introducing Voice Over IP

  • recognize the business advantages, functionality, and components of a VoIP network.
  • identify common protocols used in VoIP networks and match them to the corresponding layer of the OSI model.
  • identify issues that can affect voice service in the IP network and recognize the function of RTP and RTCP in the VoIP network.
  • recognize how VoIP technology works with centralized and distributed network architectures.
  • compare the advantages and disadvantages of centralized and distributed call control, and identify options for interconnecting VoIP protocols.
  • recognize the role of gateways in connecting VoIP to traditional PSTN and telephony equipment, and identify guidelines for selecting the appropriate gateway.
  • identify the criteria to be considered when determining gateway interconnection requirements for an enterprise environment and for a service provider environment.
  • identify the appropriate network architecture type and protocols for a given scenario.