Traditionally, voice has resided on circuit-switched networks that provide a fixed allocation of resources to guarantee a given service level. CDMA2000 1xEV-DO networks support transmission of voice over packet data. These networks not only provide QoS and the ability to run multiple data applications but also offer lower operating costs to service providers. This course provides a comprehensive look at how voice is carried over a 1xEV-DO Rev A network including VoIP network architecture and end-to-end call setup procedure It demonstrates the need for QoS and how it is accomplished in 1xEV-DO Rev A networks. Additionally, it provides students an understanding of the requirements, functionality and enhancements necessary for deploying VoIP services. VoIP capacity and quality metrics, and simulation results are presented and discussed. Finally, the ability to seamlessly hand off to different networks using Voice Call Continuity (VCC) is explored.

After completion of this course, the student will be able to:

• Describe how VoIP over CDMA2000 1xEV-DO Rev A networks functions
• Describe the IMS network architecture components needed for VoIP and walk through the end-to-end VoIP call setup procedure
• Describe the necessary 1xEV-DO Rev A functionality needed for VoIP, including E­FTCMAC, RTCMAC-ST3, EMFPA, QoS, and ROHC
• List and explain the enhancements implemented to improve the performance and efficiency of VoIP, including DRC erasure mapping, packet multicasting, delayed ARQ, time warping, de-jitter buffer, and smart blanking
• Illustrate and describe how end-to-end QoS is achieved for VoIP
• List and describe the recommended 1xEV-DO Rev A system parameters related to VoIP
• Provide a description and analysis of the VoIP capacity and quality metrics
• Explain how voice call continuity works