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Voice Over Internet Protocol, IT-O 846

About this Course: 

This course covers a suite of application protocols known as Voice over IP (VoIP). It describes important protocols within that suite including RTP, SDP, MGCP, and SIP and the architecture of various VoIP installations including on-net to on-net, on-net to PSTN and Inter-domain scenarios. The functions of the Network Elements that play significant roles in this architecture will be defined. Examples of network elements that are currently available as products will be examined.


IT-O 440 Network+ Certification Training, OSI Model Networking and protocol concepts or equivalent experience required for enrollment.

Course Outline: 

Introduction to voice over IP, introduction to Session Initiation Protocol (SIP), Session Description Protocol (SDP) and real-time Transport Protocol (RTP)
Session Initiation Protocol (SIP) functional elements and architecture
Session Initiation Protocol (SIP) message syntax and call flows
Session Initiation Protocol (SIP) relationships, transactions, dialogs and sessions
Voice payload digitization
Real-time Transport Protocol - RTP and RTCP
Session Description Protocol (SDP)
Session Initiation Protocol (SIP) Methods
Session Initiation Protocol (SIP) feature creation
Session Initiation Protocol (SIP) architectures
Project presentations and demonstrations

Expected Outcomes: 

Upon completion of this course, participants should be able to:

  • Use protocol analysis tools to analyze the message flows between Session Initiation Protocol (SIP) functional elements
  • Draw message sequence charts to aid in the analysis
  • Identify the header fields and parameters that may change as the messages traverse the network
  • Verify correct behavior and isolate trouble in the analysis
  • Identify the media streams and signaling messages associated with a Session Initiation Protocol (SIP) call and will be able to analyze the contents of both

Grading Details: 

Grading/CEU award for this course includes assignments, projects and labs.