This course provides a detailed technical description of the architecture and operation of the IP Multimedia Subsystem, and its use for the delivery of a VoIP service over LTE.
Who would benefit
This course is suitable for engineering and technical management staff who require a technical description of the options that exist in LTE and the IP multimedia subsystem for delivering voice and other real-time traffic types, that would traditionally have been carried by Circuit-Switched (CS) technologies.
Attendance on this course assumes previous attendance on the LTE Engineering Overview course (LT3600) or equivalent basic LTE knowledge (although a recap of basic LTE architecture and concepts is provided at the start of the course) and also assumes a working knowledge of IP.
Topic areas include
- Technical overview of LTE
- Introduction to the options for LTE voice
- Session Initiation Protocol (SIP)
- Session Description Protocol (SDP)
- Architecture and operation of the IP Multimedia Subsystem (IMS)
- Control and user plane functions of the IMS
- Service delivery in the IMS
- System architecture for Voice over LTE (VoLTE)
- VoLTE protocols, services and codecs
- VoLTE power-on and registration procedures
- VoLTE call setup procedures
- Access domain selection
- Single Radio Voice Call Continuity (SRVCC)
- Delivery of SMS messages over the IMS
- VoLTE emergency calls
- Voice over Wi-Fi
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