Wi-Fi Calling

Often associated with VoLTE, Wi-Fi Calling is the means by which service providers can support seamless mobility between their LTE and Wi-Fi networks, whilst maintaining voice services. This course builds on the LTE and Wi-Fi System Engineering courses and explains in detail the enhancements that need to be made to the network for VoWi-Fi, before describing how a call is established across Wi-Fi using the services of the EPC and IMS.

Click on the links below for a more detailed breakdown of each module.

  • Wi-Fi Calling Architecture Fundamentals - In Principle
  • Host Based Mobility - In Principle
  • Network Based Mobility - In Principle
  • Untrusted Non-3GPP Access - In Principle
  • IP Multimedia Subsystem - In Principle
  • Roaming Architectures - In Principle
  • Reference Document - Wi-Fi Calling Architecture
  • Test of Understanding - Wi-Fi Calling Architecture
  • Initial Procedures Fundamentals - In Principle
  • Network Discovery - In Principle
  • Accessing the Wi-Fi Network - In Principle
  • IKEv2 and IPSec - In Principle
  • EAP-AKA - In Principle
  • Session Creation and Management - In Principle
  • Reference Document - Initial Procedures
  • Test of Understanding - Initial Procedures
  • Making and Receiving Calls Fundamentals - In Principle
  • IMS Registration - In Principle
  • Mobile Originated Call Setup - Part 1 - In Principle
  • Mobile Originated Call Setup - Part 2 - In Principle
  • Interworking with the PSTN - In Principle
  • Mobile Terminated Call Setup - Part 1 - In Principle
  • Mobile Terminated Call Setup - Part 2 - In Principle
  • Interworking with the PSTN - In Principle
  • Emergency Calls and Instant Messaging - In Principle
  • Reference Document - Making and Receiving Calls over Wi-Fi
  • Test of Understanding - Making and Receiving Calls over Wi-Fi
  • Mobility and Interworking Fundamentals - In Principle
  • Wi-Fi Mobility - In Principle
  • Wi-Fi to LTE Handover - In Principle
  • LTE to Wi-Fi Handover - In Principle
  • Wi-Fi Calling and Roaming - In Principle
  • Reference Document - Mobility and Interworking
  • Test of Understanding - Mobility and Interworking
  • WiFi Offload
  • IMS and PCC System Engineering
  • LTE System Engineering
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Duration 6 hours
CPD Learning Credits 6
Accreditation ITP Certified
Price £85.00 (for 6 months access)

This course has been independently assessed and accredited by both the ITP (Institute of Telecommunications Professionals) and the CPD Standards Office (Continuing Professional Development). Their marks of excellence awarded to Mpirical provides you with the recognition that the learning you have completed conforms to best practice and is appropriate for inclusion in a formal training record. Our certified courses mean you can be certain you’re receiving the highest quality training. Both the ITP and the CPD use independent specialists to regularly assess all our products and services. Including our Learning.

ITP Certified

The ITP is the UK’s leading independent institution for people who work in telecommunications. It is dedicated to promoting the professional development of members through Professional Registration, training, mentoring and qualifications. The ITP collaborates with regulators, government associations and other leading bodies on projects that are important to the future of the industry. It has worked with businesses including; BT, Cable & Wireless Worldwide, Alcatel-Lucent, Huawei and Vodafone.

CPD Certified

By providing independent accreditation, the CPD improve the quality of continuing professional development. Their marks of excellence for training providers demonstrate to individual professionals that the learning activity conforms to best practice and is appropriate for inclusion in a formal record. Find out more about your certification at:


ITP Certified

Mpirical classes have been developed in accordance with the technical specifications published by the 3GPP. As such the 3GPP have granted Mpirical Limited the right to use the 3GPP logo to identify specifications, compliant products and services.

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