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Many of VoLTE’s early problems have been addressed and services are poised for significant growth. The next set of challenges relate to VoLTE's expanding role in the network.


  • The growth of IoT promises to massively expand the role for VoLTE as voice extends beyond person-to-person communications.
  • New cloud-native core network architectures can provide the support needed for VoLTE’s expanding role

Features and Benefits

  • See VoLTE’s progress to date and expectations for the future growth of services.
  • Understand how and why operators are moving towards cloud-native VoLTE deployments

Key questions answered

  • What will the expanding role be for VoLTE in future networks?
  • What plans should service providers be making for 5G voice services?

Table of contents


  • Catalyst
  • Ovum view
  • Key findings
  • VoLTE connections expected to accelerate
  • Virtualization and the move to cloud native
  • VoLTE support extends to M2M and IoT
  • Transitioning from VoLTE to VoNR


  • Methodology
  • Further reading
  • Author