Carrier Wi-Fi Services

Wi-Fi Calling (end-to-end)

Keep me informed


Mark Hamilton

Mark Poletti

Necati Canpolat


Project information

Wi-Fi Calling Opportunities and Challenges towards 5G – With the support from leading device vendors and leading operators globally, for Wi-Fi Calling, the momentum for Wi-Fi Calling in the industry is increasing rapidly. WBA provides an ongoing assessment of all critical factors regarding the implementation of Wi-Fi calling.

Wi-Fi Calling End-to-End System Standardization – WBA is addressing the identified gaps on previous work to develop a specification impacting all players in the ecosystem. This ranges from; Emergency Call Support, Location, Quality of Experience, Regulatory work,
among others.

Outcomes / Target Audience

WBA looks into the opportunities of Wi-Fi Calling in the industry by producing guidelines documentation that will help the ecosystem including operators, service providers and device/infrastructure vendors currently exploring this opportunity. Furthermore, WBA is creating a Focus group to review technology, business case, risk, strategic alignment, among others.


Wi-Fi Calling, Native Dialer, VoWi-Fi, VoLTE, Roaming, Emergency Services, Interworking Cellular <> Wi-Fi

Business objectives

  • Harmonize Wi-Fi Calling architecture for best practice deployment

  • Give more confidence to service providers to deploy Wi-Fi Calling


  • What’s Wi-Fi calling – Overview of Wi-Fi Calling Technologies
  • Business Drivers, Market Opportunities and Use Cases
  • Wi-Fi Calling Functional & Business Requirements
  • What are the challenges/Impediments to Wi-Fi calling?
    (Business & Technical)
  • Develop and deliver an end-to-end Wi-Fi Calling specification on which standards based solutions could be implemented and deployed
  • Define the scope for Wi-Fi Calling interoperability trials that cover various deployment models and options providing inputs to the Carrier Wireless Services Trial Project