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The IP Multimedia Subsystem (IMS) is a key component of Next Generation Networks. The IMS enables cross-provider access to services via the Internet Protocol. The 3GPP and ETSI define servers, switching points and the communication relationships and processes. The central protocol is SIP. The IMS standards describe security measures and concepts for ensuring quality of service. In the course of the course, a conceptual understanding of the IP Multimedia Subsystem is built up. Through in-depth discussion of the protocols and processes used, the necessary detailed knowledge is acquired to understand and competently assess the IMS.
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Course Contents
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- The State of the Art: Voice, Data, and more
- IMS Standards of ETSI, 3GPP, and IETF
- Architecture of the NGN: Central Technologies and Components
- The IMS Architecture: Components and Reference Points
- Call Session Control Functions and their Tasks
- Session Border Controller and Media Gateways
- Signaling with SIP in IMS: Examples
- The Diameter Protocol in the IMS
- Login Procedures with RADIUS and Diameter
- Home Subscriber Server and Billing
- Security, Legislation, and Regulatory Measures
The detailed digital documentation package, consisting of an e-book and PDF, is included in the price of the course.
Premium Course Documents
In addition to the digital documentation package, the exclusive Premium Print Package is also available to you.
- High-quality color prints of the ExperTeach documentation
- Exclusive folder in an elegant design
- Document pouch in backpack shape
- Elegant LAMY ballpoint pen
- Practical notepad
The Premium Print Package can be added during the ordering process for € 150,- plus VAT (only for classroom participation). -
Target Group
-
The course is aimed at network planners and consultants who want to get a detailed picture of this concept. In addition to explaining the structure and the most important processes, the protocols used are explained and open points and risks are highlighted.
-
Knowledge Prerequisites
-
Knowledge of the WAN technologies and structures used today in carrier networks as well as the function of IP-based networks and a basic understanding of the SIP protocol are prerequisites for successful participation in this course.
-
Alternatives
-
Book this course together with IMS Advanced – SIP and Diameter Deep Dive as PowerPackage IMS for the discounted price of € 2.795,-.
1 | Introduction and Motivation |
1.1 | Services in the Provider Network |
1.1.1 | Classic Telephony |
1.1.2 | Services in the Internet |
1.1.3 | IP-based Telephony |
1.2 | IMS Switching Architecture |
1.3 | IMS Standardization |
1.3.1 | IETF—Internet Standards |
1.3.2 | 3GPP—3G Partnership Project |
1.3.3 | ETSI—The European Idea with TISPAN |
1.3.4 | PacketCable™ |
1.3.5 | The Open Mobile Alliance |
1.4 | IMS Access |
1.4.1 | Demands Made on the Access Network |
1.4.2 | Public Switched Network |
1.4.3 | Broadband Cable |
1.4.4 | LTE |
1.4.5 | OTT |
1.5 | A First Glance on the IMS |
1.5.1 | The IMS Architecture |
1.5.2 | The Main Protocols in the IMS |
2 | Components and Protocols |
2.1 | Overview |
2.2 | SIP—Session Initiation Protocol |
2.2.1 | The Basic Idea of SIP |
2.2.2 | The Components of the SIP Architecture and their Tasks |
2.2.3 | End Points and Addressing |
2.2.4 | Protocol Setup |
2.2.5 | The SIP Message |
2.3 | Diameter |
2.3.1 | Elements |
2.3.2 | Header |
2.3.3 | The Command Codes |
2.3.4 | Attributes—A Selection |
2.4 | MeGaCo |
2.4.1 | The Idea |
2.4.2 | The Commands |
2.5 | Payload Data Transport |
2.5.1 | Voice Encoding and Compression |
2.5.2 | RTP—Transport and Reconstruction Functions |
2.5.3 | Messaging |
3 | The IMS Architecture |
3.1 | The General Setup of the IMS |
3.2 | Control Functions |
3.2.1 | P-CSCF |
3.2.2 | I-CSCF |
3.2.3 | Serving CSCF |
3.3 | Application Server |
3.4 | Media Resource Function |
3.5 | Databases |
3.5.1 | The User Profile |
3.5.2 | Initial Filter Criteria |
3.6 | Gateways |
3.6.1 | Interworking with the PSTN |
3.6.2 | WebRTC Gateways |
3.6.3 | IMS AGW/Session Border Controller |
3.7 | Interconnection |
3.8 | Access-specific Extensions |
3.9 | Call Flows |
3.9.1 | SIP Routing—Path and Service Route |
3.9.2 | IMS Registration |
3.9.3 | UE to P-CSCF REGISTER |
3.9.4 | REGISTER Error Conditions |
3.9.5 | Authentication |
3.9.6 | PS-to-PS Call (1) |
3.9.7 | PS-to-CS Call |
4 | IMS and Mobile Communications |
4.1 | Voice over LTE (VoLTE) |
4.1.1 | PCC |
4.1.2 | Registration Procedure |
4.1.3 | VoLTE Call Setup (Principle) |
4.1.4 | Bearer Handling |
4.1.5 | VoLTE Call Termination (Principle) |
4.2 | Enhanced Single Radio Voice Call Continuity |
4.2.1 | SRVCC Variants |
4.2.2 | T-ADS |
4.3 | Non-3GPP Access |
4.3.1 | Untrusted WLAN |
4.3.2 | Call Setup |
4.3.3 | ANDSF |
4.4 | RCS |
A | List of Abbreviations |
-
Classroom training
- Do you prefer the classic training method? A course in one of our Training Centers, with a competent trainer and the direct exchange between all course participants? Then you should book one of our classroom training dates!
-
Hybrid training
- Hybrid training means that online participants can additionally attend a classroom course. The dynamics of a real seminar are maintained, and the online participants are able to benefit from that. Online participants of a hybrid course use a collaboration platform, such as WebEx Training Center or Saba Meeting. To do this, a PC with browser and Internet access is required, as well as a headset and ideally a Web cam. In the seminar room, we use specially developed and customized audio- and video-technologies. This makes sure that the communication between all persons involved works in a convenient and fault-free way.
-
Online training
- You wish to attend a course in online mode? We offer you online course dates for this course topic. To attend these seminars, you need to have a PC with Internet access (minimum data rate 1Mbps), a headset when working via VoIP and optionally a camera. For further information and technical recommendations, please refer to.
-
Tailor-made courses
-
You need a special course for your team? In addition to our standard offer, we will also support you in creating your customized courses, which precisely meet your individual demands. We will be glad to consult you and create an individual offer for you.

-
The IP Multimedia Subsystem (IMS) is a key component of Next Generation Networks. The IMS enables cross-provider access to services via the Internet Protocol. The 3GPP and ETSI define servers, switching points and the communication relationships and processes. The central protocol is SIP. The IMS standards describe security measures and concepts for ensuring quality of service. In the course of the course, a conceptual understanding of the IP Multimedia Subsystem is built up. Through in-depth discussion of the protocols and processes used, the necessary detailed knowledge is acquired to understand and competently assess the IMS.
-
Course Contents
-
- The State of the Art: Voice, Data, and more
- IMS Standards of ETSI, 3GPP, and IETF
- Architecture of the NGN: Central Technologies and Components
- The IMS Architecture: Components and Reference Points
- Call Session Control Functions and their Tasks
- Session Border Controller and Media Gateways
- Signaling with SIP in IMS: Examples
- The Diameter Protocol in the IMS
- Login Procedures with RADIUS and Diameter
- Home Subscriber Server and Billing
- Security, Legislation, and Regulatory Measures
The detailed digital documentation package, consisting of an e-book and PDF, is included in the price of the course.
Premium Course Documents
In addition to the digital documentation package, the exclusive Premium Print Package is also available to you.
- High-quality color prints of the ExperTeach documentation
- Exclusive folder in an elegant design
- Document pouch in backpack shape
- Elegant LAMY ballpoint pen
- Practical notepad
The Premium Print Package can be added during the ordering process for € 150,- plus VAT (only for classroom participation). -
Target Group
-
The course is aimed at network planners and consultants who want to get a detailed picture of this concept. In addition to explaining the structure and the most important processes, the protocols used are explained and open points and risks are highlighted.
-
Knowledge Prerequisites
-
Knowledge of the WAN technologies and structures used today in carrier networks as well as the function of IP-based networks and a basic understanding of the SIP protocol are prerequisites for successful participation in this course.
-
Alternatives
-
Book this course together with IMS Advanced – SIP and Diameter Deep Dive as PowerPackage IMS for the discounted price of € 2.795,-.
1 | Introduction and Motivation |
1.1 | Services in the Provider Network |
1.1.1 | Classic Telephony |
1.1.2 | Services in the Internet |
1.1.3 | IP-based Telephony |
1.2 | IMS Switching Architecture |
1.3 | IMS Standardization |
1.3.1 | IETF—Internet Standards |
1.3.2 | 3GPP—3G Partnership Project |
1.3.3 | ETSI—The European Idea with TISPAN |
1.3.4 | PacketCable™ |
1.3.5 | The Open Mobile Alliance |
1.4 | IMS Access |
1.4.1 | Demands Made on the Access Network |
1.4.2 | Public Switched Network |
1.4.3 | Broadband Cable |
1.4.4 | LTE |
1.4.5 | OTT |
1.5 | A First Glance on the IMS |
1.5.1 | The IMS Architecture |
1.5.2 | The Main Protocols in the IMS |
2 | Components and Protocols |
2.1 | Overview |
2.2 | SIP—Session Initiation Protocol |
2.2.1 | The Basic Idea of SIP |
2.2.2 | The Components of the SIP Architecture and their Tasks |
2.2.3 | End Points and Addressing |
2.2.4 | Protocol Setup |
2.2.5 | The SIP Message |
2.3 | Diameter |
2.3.1 | Elements |
2.3.2 | Header |
2.3.3 | The Command Codes |
2.3.4 | Attributes—A Selection |
2.4 | MeGaCo |
2.4.1 | The Idea |
2.4.2 | The Commands |
2.5 | Payload Data Transport |
2.5.1 | Voice Encoding and Compression |
2.5.2 | RTP—Transport and Reconstruction Functions |
2.5.3 | Messaging |
3 | The IMS Architecture |
3.1 | The General Setup of the IMS |
3.2 | Control Functions |
3.2.1 | P-CSCF |
3.2.2 | I-CSCF |
3.2.3 | Serving CSCF |
3.3 | Application Server |
3.4 | Media Resource Function |
3.5 | Databases |
3.5.1 | The User Profile |
3.5.2 | Initial Filter Criteria |
3.6 | Gateways |
3.6.1 | Interworking with the PSTN |
3.6.2 | WebRTC Gateways |
3.6.3 | IMS AGW/Session Border Controller |
3.7 | Interconnection |
3.8 | Access-specific Extensions |
3.9 | Call Flows |
3.9.1 | SIP Routing—Path and Service Route |
3.9.2 | IMS Registration |
3.9.3 | UE to P-CSCF REGISTER |
3.9.4 | REGISTER Error Conditions |
3.9.5 | Authentication |
3.9.6 | PS-to-PS Call (1) |
3.9.7 | PS-to-CS Call |
4 | IMS and Mobile Communications |
4.1 | Voice over LTE (VoLTE) |
4.1.1 | PCC |
4.1.2 | Registration Procedure |
4.1.3 | VoLTE Call Setup (Principle) |
4.1.4 | Bearer Handling |
4.1.5 | VoLTE Call Termination (Principle) |
4.2 | Enhanced Single Radio Voice Call Continuity |
4.2.1 | SRVCC Variants |
4.2.2 | T-ADS |
4.3 | Non-3GPP Access |
4.3.1 | Untrusted WLAN |
4.3.2 | Call Setup |
4.3.3 | ANDSF |
4.4 | RCS |
A | List of Abbreviations |
-
Classroom training
- Do you prefer the classic training method? A course in one of our Training Centers, with a competent trainer and the direct exchange between all course participants? Then you should book one of our classroom training dates!
-
Hybrid training
- Hybrid training means that online participants can additionally attend a classroom course. The dynamics of a real seminar are maintained, and the online participants are able to benefit from that. Online participants of a hybrid course use a collaboration platform, such as WebEx Training Center or Saba Meeting. To do this, a PC with browser and Internet access is required, as well as a headset and ideally a Web cam. In the seminar room, we use specially developed and customized audio- and video-technologies. This makes sure that the communication between all persons involved works in a convenient and fault-free way.
-
Online training
- You wish to attend a course in online mode? We offer you online course dates for this course topic. To attend these seminars, you need to have a PC with Internet access (minimum data rate 1Mbps), a headset when working via VoIP and optionally a camera. For further information and technical recommendations, please refer to.
-
Tailor-made courses
-
You need a special course for your team? In addition to our standard offer, we will also support you in creating your customized courses, which precisely meet your individual demands. We will be glad to consult you and create an individual offer for you.
