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VoLTE and VoWiFi: The Future of Voice for Mobile Operators

VoLTE and VoWiFi: The Future of Voice for Mobile OperatorsThis IDC study focuses on voice over LTE (VoLTE) and voice over WiFi (VoWiFi), both of which are services provided by mobile network operators for making calls on mobile phones, generally referred to as "mobile voice." "VoLTE is inevitable for European mobile operators, but timing is a critical decision," said John Delaney, associate vice president, IDC Europe Mobility Research. "By moving their 4G customers from circuit-switched voice to VoLTE, mobile operators can achieve progressively greater cost savings in the short, medium, and long term. And once VoLTE is under way, a relatively small additional investment in VoWiFi can bring substantial improvements to customer experience. In this study, we examine what is needed to deploy VoLTE and VoWiFi as well as the benefits of doing so. We also analyze the positioning of operators' IP communications services in comparison with those of over-the-top (OTT) service providers. Lastly, we provide case studies of European operators that are currently getting to grips with the deployment of VoLTE and VoWiFi."

Please Note: Extended description available upon request.

IDC Opinion
In This Study
Situation Overview
Voice Services in the New Generation of Mobile Networks
In the Age of Mobile Internet, Voice Remains a Crucial Service
What Is VoLTE and Why Does It Matter?
Reinventing Mobile Voice for 4G Networks
IMS: A Solution Looking for a Problem, and Then Finding One
Using VoLTE to Take Mobile Voice into New Places?
RCS/Joyn as a Discouraging Precedent
What Is VoWiFi and Why Does It Matter?
Mitigating Poor Cellular Coverage
Why Now, for WiFi Calling?
Future Outlook
The Over-the-Top Approach to IP Communications Services: Are Telcos Being Outflanked?
IP Messaging Is Eroding SMS Usage
VoIP Will Also Erode Mobile Voice Usage, Although Not So Severely
Implementing VoLTE and VoWiFi Services
The Business Case for VoLTE and VoWiFi
VoLTE: A Series of Benefits in the Short, Medium, and Long Term
Short Term: Better Quality and More Efficient Operation
Medium Term: Partial Reuse of Licensed Spectrum
Long Term: Decommission Legacy Networks
VoWiFi: Addressing Churn Through Improved Voice Coverage
Charging Models for VoLTE and VoWiFi
VoLTE and VoWiFi Services from Mobile Operators in Europe
Deployments Gather Pace, Following Device Support
Mobile Operator Case Studies
About the Service
The Customer Experience
About the Service
The Customer Experience
About the Service
The Customer Experience
About the Service
The Customer Experience
About the Service
The Customer Experience
Essential Guidance
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