Name of module
Contents (main topics)
Drivers and enablers
The driving forces behind the evolution of multimedia
over IP networks are studied.
A quick look at who is doing what regarding
SIP is the main protocol used in IMS to enable
services. The protocol is studied to a level that
makes it possible to understand the use of it in IMS.
SDP is used to describe the media exchanged
between subscribers connected to IMS. The protocol
is studied in order to understand how media format is
The transport of media using Real Time Protocol is
studied as well as related areas.
Standard codecs for voice and video are quickly
IMS is a completely new subsystem of UMTS with
many functions distributed in many different network
elements. This module describes so to say what the
IMS system consists of.
Procedures in IMS
This module describes how registration and sessions
are handled by IMS by means of some examples
Quality of service
Quality of service must be handled in order to create
attractive services. This module describes how IMS
interacts with GPRS to guarantee quality of service.
IMS is able to charge for usage of services and this
module describes how charging has been
implemented in IMS.
Voice services in
Voice services in LTE is studied in general (Volga,
VoLTE and CS Fallback) and then a detailed study of
the IMS-based solution VoLTE.
This 2-day course gives a broad overview of the IP Multimedia Subsystem that will be an
essential part of future mobile systems. The course then describes how voice services will be
handled in LTE with special focus on the IMS-based solution referred to as Voice over LTE (VoLTE).
The main objective of this course is to give an overview over IMS in order to understand its
structure and main characteristics. Part objectives are:
The course should be seen as a starter for anyone who will directly or indirectly work with
IMS or services executed by IMS such as VoLTE.
The course will touch areas such as Internet and mobile networks (UMST, LTE) but on a
high level. The more the trainees know about today’s mobile network (UMTS and LTE), the
better. It is recommended that trainees have some basic knowledge in Internet protocols
such as IP, TCP, and UDP. However, this is an introduction course and it is possible to
understand the course without this knowledge.
The course is planned as a 2-day course with theoretical lessons and theoretical exercises.
This means that there are about 6+6 lessons during these two days.