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Explore VoLTE technology and user benefits


Launch new innovative voice and communication services on smartphones and other voice-capable devices, over LTE, Wi-Fi and 5G.

VoLTE (voice over LTE) is the foundation for evolving mobile voice and communication services for packet switched 4G, Wi-Fi and 5G networks. It is the mainstream mobile network technology for enabling globally interoperable voice and communication services, using IP Multimedia Subsystem (IMS). VoLTE enables high-quality and seamless HD voice services across a multitude of devices like smartphones, smartwatches and enterprise end-points. IMS also enables 5G voice and communication services.

What are the benefits of VoLTE?​

  • VoLTE enables improved and innovative voice and communication services across smartphones, wearables, smart speakers, other devices and enterprise end-points over LTE, Wi-Fi and 5G networks
  • It provides a foundation for improving business and enterprise collaboration services in combination with high-quality mobile voice services
  • VoLTE provides telecom grade services for consumers, businesses, enterprises and industries and is deployed with cloud-based solutions 

Read our brief descriptions about voice services evolution and the drivers for transformation and what end-user services VoLTE enables.

Monetize VoLTE  | Innovative offerings

Find inspiration how VoLTE provides a greater user experience | Video | 2 min.


Use cases | Let's talk voice

Explore how mobile voice services in 4G and 5G can bring new value to users and increase service provider revenue.

VoLTE | White paper | 20 min.

Communication services over LTE, Wi-Fi and 5G. This paper explains the technologies that enable globally interoperable communication services over any access network. 

Voice Services | Mobility Report | 3 min.

VoLTE enables globally interoperable voice and communication services on 4G and 5G devices. Subscriptions are estimated to exceed 3 billion at the end of 2020 and reach 6.9 billion by the end of 2026.

Enable 5G voice services in mobile networks | Guide | 25 min.

All service providers must consider how to deploy mobile voice services in 5G networks. Learn how in our guide to enabling 5G voice services in mobile networks.

White paper | Sunset 2G/3G

With the introduction of 4G and 5G, service providers need to plan for 2G/3G closure to reuse the spectrum and reduce costs. This white paper provides recommendations on how to prepare for closure in the Circuit Switching and IMS domains.

How to get started with Ericsson’s VoLTE offerings​

​Ericsson’s VoLTE capable solutions encompass all of the communication core and radio network components, and professional deployment and tuning services necessary to provide high-quality and innovative voice use cases. The solutions enable consumer voice services for smartphones, smart watches and smart speakers, but also build a foundation for high-quality mobile voice and communication services and collaboration services for businesses, enterprises and industries.

The cloud native IMS solutions can be delivered with short time-to-market as pre-integrated and verified solutions, and can improve total cost of ownership and reduce network operation and maintenance cost by up to 70%.

Choose Ericsson’s VoLTE solutions if you want to:

  • Innovate quickly: be first to market with voice services innovations through global device eco-system partnerships.
  • Easily broaden your offerings: utilize a unique solution to expand your consumer service for businesses and enterprises.
  • Gain agility: deploy VoLTE in weeks with industrialized cloud-based solutions.
  • Grow your market: extend with new 5G communication services.
Read solution brief

Explore our portfolio​ to enable VoLTE

Explore voice and communications solutions

5G Voice

Learn about mobile network evolution to enable voice calls on 5G smartphones and explore new 5G business opportunities related to voice services.

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