Course Details
Often associated with VoLTE (Voice over Long Term Evolution), Wi-Fi Calling is the means by which service providers can support seamless mobility between the LTE and Wi-Fi networks, whilst maintaining voice services. The course builds on the LTE System Engineering and Wi-Fi System Engineering courses and explains in detail the enhancements that need to be made to the network to support VoWi-Fi, before describing how a call is established across Wi-Fi using the services of the EPC (Evolved Packet Core) and IMS (IP Multimedia Subsystem).
This course is available as part of a package or for individual purchase. View purchase options to learn more.
Graeme Green
Mpirical Trainer
Graeme has worked at the heart of the mobile telecommunications sector for over 30 years. During this period, he has developed and delivered training to most of the major network vendors and service providers around the world, in addition to speaking at numerous international conferences and attending ETSI and 3GPP technical meetings.
£245
Individual Course
Module 1
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Wi-Fi Calling Architecture
Wi-Fi Calling Architecture Fundamentals:
- VoLTE and VoWi-Fi.
- Deployment Scenarios.
- Network Architectures:
- Trusted Non-3GPP Access.
- Untrusted Non-3GPP Access.
Mobility Mechanisms:
- Host Based Mobility.
- Network Based Mobility:
- PMIPv6.
- GTP.
- Multi Access PDN Connectivity.
- Non seamless Wi-Fi Offload.
Network Architecture:
- Untrusted Non-3GPP Access (GTP):
- UE, Access Point, ePDG, PDN-GW, AAA Server, PCRF, ANDSF.
- Protocol Stacks and Reference Points.
- IP Multimedia Subsystem:
- P-CSCF, S-CSCF, I-CSCF.
- IMS Protocols.
Roaming Architectures:
- Home Routed.
- Local Breakout.
Module 2
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Initial Procedures
Initial Procedures Fundamentals:
- Bearer Models and Bearer Mapping.
Network Discovery and Selection:
- Network Discovery:
- RAN Assistance Information.
- ANDSF Rules.
- Accessing the Wi-Fi Network:
- Finding a Wi-Fi Network.
- Joining a Wi-Fi Network.
- WPA and Robust Security Networking.
- ePDG Selection.
Initial Attach:
- IKEv2 and IPSec.
- EAP-AKA:
- Detailed Signalling Evaluation.
- Session Creation and Management:
- Detailed Signalling Evaluation.
Module 3
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Making and Receiving Calls over Wi-Fi
Making and Receiving Calls Fundamentals.
IMS Registration:
- IMS Identities:
- Private User Identities.
- Public User Identities.
- Service Profiles.
- Initial Registration Phase:
- Detailed Signalling Evaluation.
- Registration security Phase:
- Detailed Signalling Evaluation.
- Final Registration Phase:
- Detailed Signalling Evaluation.
Mobile Originated Call Setup:
- VoWi-Fi to VoWi-Fi / VoLTE:
- Detailed Signalling Evaluation.
- VoWi-Fi to PSTN:
- Detailed Signalling Evaluation.
Mobile Terminated Call Setup:
- VoWi-Fi / VoLTE to VoWi-Fi:
- Detailed Signalling Evaluation.
- PSTN to VoWi-Fi
- Detailed Signalling Evaluation.
Emergency Calls.
Instant Messaging.
Module 4
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Mobility and Interworking
Mobility and Interworking Fundamentals.
Wi-Fi Mobility:
- Access Point Channel Reports.
- Wi-Fi Reassociation.
- 802.11 Amendments:
- 802.11k, 802.11r.
Wi-Fi to LTE Handover:
- Detailed Signalling Evaluation.
- Mobility when LTE Attached.
LTE to Wi-Fi Handover:
- Detailed Signalling Evaluation.
Wi-Fi Calling and Roaming:
- Home ePDG.
- Home PDN-GW.
- Visited PDN-GW.
£245
Individual Course
Available as part of our Package Options
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£245
Individual Course
£495
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