-
IP-based telephony in LTE-based networks is referred to as Voice over LTE (VoLTE). Unlike in previous mobile networks, the service is provided here via an IP Multimedia Subsystem (IMS).In order to be able to make calls via an LTE network, the processes via the IMS must be linked to those in the access network. It must be ensured that calls that have already been set up are retained, even if the mobile network coverage changes. Extensions such as the WLAN call are intended to close any remaining gaps in coverage. Finally, VoLTE calls should also be possible across providers both as interconnection calls and via VoLTE roaming.
-
Course Contents
-
- LTE network requirements
- IP Multimedia Subsystem (IMS) in mobile communications
- Policy and Charging Rules Function (PCRF)
- Handover procedures
- Attach with registration
- Detach and de-registration
- Terminating Access Domain Selection (T-ADS)
- Call Flows
- Single Radio Voice Call Continuation (RVCC)
- Rich Communication Suite (RCS)
- PC and CS Interconnection
- VoLTE Roaming
- WLAN Call
- Emergency Call
- 5G and telephony
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 people from LTE network planning, technology, consulting and product management who deal with Voice over LTE (VoLTE), the introduction of VoLTE, the operation and coupling of LTE networks.
-
Knowledge Prerequisites
-
Basic knowledge of mobile radio networks, corresponding to the courses Mobile radio today - From GSM to LTE to 5G or LTE, LTE-Advanced & 5G - Everything about current mobile radio is required.Knowledge of IP protocols and Voice over IP is desirable
.
-
Alternatives
-
Book this course together with Voice over New Radio (VoNR) – Architecture and Procedures as PowerPackage Voice over New Radio, LTE and WLAN for the discounted price of € 3.195,-.
| 1 | 4G Access |
| 1.1 | 4G: LTE and EPC |
| 1.1.1 | EPS Network Elements in an Overview |
| 1.1.2 | The LTE User Equipment |
| 1.1.3 | eNodeB Functions |
| 1.1.4 | The Evolved Packet Core |
| 1.2 | LTE Identities |
| 1.2.1 | User and User Equipment Identities |
| 1.2.2 | Location-related Identities |
| 1.3 | EPS Bearer & QoS |
| 1.3.1 | Default & Dedicated Bearer |
| 1.3.2 | Quality of Service (QoS) |
| 1.4 | EPS Interfaces & Protocols |
| 1.4.1 | S1 Interface |
| 1.4.2 | X2 Interface |
| 1.4.3 | GTP-based Interfaces |
| 1.4.4 | Diameter-based Interfaces |
| 1.5 | Attach with Default Bearer Setup |
| 1.6 | Dedicated Bearer Setup |
| 1.7 | De-Registration: Detach |
| 1.7.1 | UE-initiated Detach |
| 1.7.2 | MME-initiated Detach |
| 1.7.3 | HSS-initiated Detach |
| 1.8 | Handover (HO) |
| 1.8.1 | X2-based Handover |
| 1.8.2 | Inter-RAT HO to UTRAN |
| 2 | The IMS Architecture |
| 2.1 | The General Setup of the IMS |
| 2.2 | Control Functions |
| 2.2.1 | P-CSCF |
| 2.2.2 | I-CSCF |
| 2.2.3 | Serving CSCF |
| 2.3 | Application Server |
| 2.4 | Media Resource Function |
| 2.5 | Databases |
| 2.5.1 | The User Profile |
| 2.5.2 | Initial Filter Criteria |
| 2.6 | Gateways |
| 2.6.1 | Interworking with the PSTN |
| 2.6.2 | IMS AGW/Session Border Controller |
| 2.7 | Access-specific Extensions |
| 2.8 | Call Flows |
| 2.8.1 | IMS Registration |
| 2.8.2 | Identities in the IMS |
| 2.8.3 | Authentication |
| 2.8.4 | PS-to-PS Call (1) |
| 2.8.5 | PS-to-CS Call |
| 3 | VoLTE Telephony |
| 3.1 | EPS & IMS Overall Architecture |
| 3.2 | Registration Procedure |
| 3.2.1 | VoLTE UE Attach |
| 3.2.2 | VoLTE UE IMS Registration |
| 3.3 | Log-off Procedure |
| 3.4 | VoLTE Call Setup (Principle) |
| 3.4.1 | VoLTE Call Setup: The Calling End (1/2) |
| 3.4.2 | VoLTE Call Setup: The Called End |
| 3.5 | VoLTE Call Termination (Principle) |
| 3.5.1 | VoLTE Call Termination: The Initiating End |
| 3.5.2 | VoLTE Call Termination: The Receiving End |
| 3.6 | Circuit-Switched Fallback (CSFB) |
| 3.6.1 | Call Setup to the End Device (MTC) |
| 3.6.2 | Call Setup from the End Device (MOC) |
| 3.7 | SRVCC Variants |
| 3.7.1 | Enhanced Single Radio Voice Call Continuity |
| 3.7.2 | eSRVCC Procedure with ATCF |
| 3.8 | T-ADS |
| 3.9 | SMS and LTE |
| 3.9.1 | SMS over SGsAP |
| 3.9.2 | SMS over IP |
| 3.10 | RCS |
| 3.10.1 | MSRP |
| 3.10.2 | Capabilities of the end devices |
| 3.10.3 | Feature Tags |
| 3.10.4 | Chatbots |
| 4 | Voice over WiFi |
| 4.1 | Non-3GPP Access |
| 4.2 | Selection of the Access Network |
| 4.3 | ANDSF |
| 4.4 | Registration Architecture |
| 4.5 | Trusted WLAN |
| 4.5.1 | EAP-SIM (1) |
| 4.5.2 | EAP-AKA (1) |
| 4.5.3 | Fast Re-Authentication |
| 4.6 | Untrusted WLAN |
| 4.6.1 | IPSec Tunnel from the UE |
| 4.6.2 | Call Setup |
| 4.7 | Inter-RAT Handover |
| 5 | Payload Data |
| 5.1 | Voice Transport over IP |
| 5.2 | Digital Voice Transmission |
| 5.2.1 | Digitizing Voice |
| 5.2.2 | Voice Coding Procedures |
| 5.3 | High-quality Voice Codecs in Mobile Communications (AMR-WB & EVS) |
| 5.3.1 | Motivation for High-quality Voice Codecs |
| 5.3.2 | Overview: AMR-WB & EVS |
| 5.3.3 | AMR-WB |
| 5.3.4 | EVS |
| 5.4 | MOS—Comparison of Sound Quality |
| 6 | Network Coupling |
| 6.1 | IPX |
| 6.1.1 | Diameter Routing/Edge Agent |
| 6.2 | Roaming Scenarios |
| 6.3 | LTE Roaming Variants |
| 6.3.1 | Roaming: Attach |
| 6.3.2 | Local Breakout |
| 6.4 | Roaming: Home Routed |
| 6.4.1 | Home Routing: Call Flow |
| 6.4.2 | Emergency Call with National Roaming |
| 6.5 | Interconnection |
| 6.5.1 | Network Interconnecting Architecture |
| 6.5.2 | Inter-IMS Network-to-Network Interface |
| 6.6 | Transit |
| 6.6.1 | Interconnection in Detail |
| 6.7 | ENUM—Call Number Mapping and Detection |
| 6.7.1 | Address Structures |
| 6.7.2 | The ENUM Request in Detail |
| 6.8 | Interconnection According to AKNN |
| 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.
You can find the complete description of this course with dates and prices ready for download at as PDF.-
IP-based telephony in LTE-based networks is referred to as Voice over LTE (VoLTE). Unlike in previous mobile networks, the service is provided here via an IP Multimedia Subsystem (IMS).In order to be able to make calls via an LTE network, the processes via the IMS must be linked to those in the access network. It must be ensured that calls that have already been set up are retained, even if the mobile network coverage changes. Extensions such as the WLAN call are intended to close any remaining gaps in coverage. Finally, VoLTE calls should also be possible across providers both as interconnection calls and via VoLTE roaming.
-
Course Contents
-
- LTE network requirements
- IP Multimedia Subsystem (IMS) in mobile communications
- Policy and Charging Rules Function (PCRF)
- Handover procedures
- Attach with registration
- Detach and de-registration
- Terminating Access Domain Selection (T-ADS)
- Call Flows
- Single Radio Voice Call Continuation (RVCC)
- Rich Communication Suite (RCS)
- PC and CS Interconnection
- VoLTE Roaming
- WLAN Call
- Emergency Call
- 5G and telephony
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 people from LTE network planning, technology, consulting and product management who deal with Voice over LTE (VoLTE), the introduction of VoLTE, the operation and coupling of LTE networks.
-
Knowledge Prerequisites
-
Basic knowledge of mobile radio networks, corresponding to the courses Mobile radio today - From GSM to LTE to 5G or LTE, LTE-Advanced & 5G - Everything about current mobile radio is required.Knowledge of IP protocols and Voice over IP is desirable
.
-
Alternatives
-
Book this course together with Voice over New Radio (VoNR) – Architecture and Procedures as PowerPackage Voice over New Radio, LTE and WLAN for the discounted price of € 3.195,-.
| 1 | 4G Access |
| 1.1 | 4G: LTE and EPC |
| 1.1.1 | EPS Network Elements in an Overview |
| 1.1.2 | The LTE User Equipment |
| 1.1.3 | eNodeB Functions |
| 1.1.4 | The Evolved Packet Core |
| 1.2 | LTE Identities |
| 1.2.1 | User and User Equipment Identities |
| 1.2.2 | Location-related Identities |
| 1.3 | EPS Bearer & QoS |
| 1.3.1 | Default & Dedicated Bearer |
| 1.3.2 | Quality of Service (QoS) |
| 1.4 | EPS Interfaces & Protocols |
| 1.4.1 | S1 Interface |
| 1.4.2 | X2 Interface |
| 1.4.3 | GTP-based Interfaces |
| 1.4.4 | Diameter-based Interfaces |
| 1.5 | Attach with Default Bearer Setup |
| 1.6 | Dedicated Bearer Setup |
| 1.7 | De-Registration: Detach |
| 1.7.1 | UE-initiated Detach |
| 1.7.2 | MME-initiated Detach |
| 1.7.3 | HSS-initiated Detach |
| 1.8 | Handover (HO) |
| 1.8.1 | X2-based Handover |
| 1.8.2 | Inter-RAT HO to UTRAN |
| 2 | The IMS Architecture |
| 2.1 | The General Setup of the IMS |
| 2.2 | Control Functions |
| 2.2.1 | P-CSCF |
| 2.2.2 | I-CSCF |
| 2.2.3 | Serving CSCF |
| 2.3 | Application Server |
| 2.4 | Media Resource Function |
| 2.5 | Databases |
| 2.5.1 | The User Profile |
| 2.5.2 | Initial Filter Criteria |
| 2.6 | Gateways |
| 2.6.1 | Interworking with the PSTN |
| 2.6.2 | IMS AGW/Session Border Controller |
| 2.7 | Access-specific Extensions |
| 2.8 | Call Flows |
| 2.8.1 | IMS Registration |
| 2.8.2 | Identities in the IMS |
| 2.8.3 | Authentication |
| 2.8.4 | PS-to-PS Call (1) |
| 2.8.5 | PS-to-CS Call |
| 3 | VoLTE Telephony |
| 3.1 | EPS & IMS Overall Architecture |
| 3.2 | Registration Procedure |
| 3.2.1 | VoLTE UE Attach |
| 3.2.2 | VoLTE UE IMS Registration |
| 3.3 | Log-off Procedure |
| 3.4 | VoLTE Call Setup (Principle) |
| 3.4.1 | VoLTE Call Setup: The Calling End (1/2) |
| 3.4.2 | VoLTE Call Setup: The Called End |
| 3.5 | VoLTE Call Termination (Principle) |
| 3.5.1 | VoLTE Call Termination: The Initiating End |
| 3.5.2 | VoLTE Call Termination: The Receiving End |
| 3.6 | Circuit-Switched Fallback (CSFB) |
| 3.6.1 | Call Setup to the End Device (MTC) |
| 3.6.2 | Call Setup from the End Device (MOC) |
| 3.7 | SRVCC Variants |
| 3.7.1 | Enhanced Single Radio Voice Call Continuity |
| 3.7.2 | eSRVCC Procedure with ATCF |
| 3.8 | T-ADS |
| 3.9 | SMS and LTE |
| 3.9.1 | SMS over SGsAP |
| 3.9.2 | SMS over IP |
| 3.10 | RCS |
| 3.10.1 | MSRP |
| 3.10.2 | Capabilities of the end devices |
| 3.10.3 | Feature Tags |
| 3.10.4 | Chatbots |
| 4 | Voice over WiFi |
| 4.1 | Non-3GPP Access |
| 4.2 | Selection of the Access Network |
| 4.3 | ANDSF |
| 4.4 | Registration Architecture |
| 4.5 | Trusted WLAN |
| 4.5.1 | EAP-SIM (1) |
| 4.5.2 | EAP-AKA (1) |
| 4.5.3 | Fast Re-Authentication |
| 4.6 | Untrusted WLAN |
| 4.6.1 | IPSec Tunnel from the UE |
| 4.6.2 | Call Setup |
| 4.7 | Inter-RAT Handover |
| 5 | Payload Data |
| 5.1 | Voice Transport over IP |
| 5.2 | Digital Voice Transmission |
| 5.2.1 | Digitizing Voice |
| 5.2.2 | Voice Coding Procedures |
| 5.3 | High-quality Voice Codecs in Mobile Communications (AMR-WB & EVS) |
| 5.3.1 | Motivation for High-quality Voice Codecs |
| 5.3.2 | Overview: AMR-WB & EVS |
| 5.3.3 | AMR-WB |
| 5.3.4 | EVS |
| 5.4 | MOS—Comparison of Sound Quality |
| 6 | Network Coupling |
| 6.1 | IPX |
| 6.1.1 | Diameter Routing/Edge Agent |
| 6.2 | Roaming Scenarios |
| 6.3 | LTE Roaming Variants |
| 6.3.1 | Roaming: Attach |
| 6.3.2 | Local Breakout |
| 6.4 | Roaming: Home Routed |
| 6.4.1 | Home Routing: Call Flow |
| 6.4.2 | Emergency Call with National Roaming |
| 6.5 | Interconnection |
| 6.5.1 | Network Interconnecting Architecture |
| 6.5.2 | Inter-IMS Network-to-Network Interface |
| 6.6 | Transit |
| 6.6.1 | Interconnection in Detail |
| 6.7 | ENUM—Call Number Mapping and Detection |
| 6.7.1 | Address Structures |
| 6.7.2 | The ENUM Request in Detail |
| 6.8 | Interconnection According to AKNN |
| 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.
You can find the complete description of this course with dates and prices ready for download at as PDF.
Guaranteed with the next booking
Hybrid Training
Trainer language German