As IMS based VoLTE becomes the prevalent voice service enabler for 4G, this short course is designed to introduce the main concepts behind today’s VoLTE networks. VoLTE will be considered on an end to end basis, with focus on the architecture required, as well as key aspects such as initial procedures, call establishment and interworking.
Beginner |
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Introduction to VoLTE

This course will contain the following topics:

  • VoLTE Concepts and Drivers:
    • VoLTE Standardization.
  • VoLTE End to End Architecture:
    • LTE Access Network.
    • IP Multimedia Subsystem.
    • Policy and Charging Control.
  • VoLTE Initial Procedures:
    • Subscriber Provisioning.
    • Establishing IMS Connectivity.
    • IMS Registration.
    • Post Registration.
  • VoLTE Call Procedures:
    • SIP Signalling Exchange.
    • Establishing Dedicated Bearers.
    • Tearing Down the Call.
  • Interworking:
    • Interworking with Legacy Voice Networks.
    • Handing Over to 2G/3G (SR-VCC).
    • Wi-Fi Calling.