Voice over LTE and New Radio

  • Recover spectrum used for circuit switched voice
  • Expand coverage with Voice over WiFi (VoWiFi)
  • Improve call quality with high definition audio 

What is it?

Voice over Long Term Evolution (VoLTE) and Voice over New Radio (VoNR) is the practice of packetizing voice over the Internet Protocol (VoIP) and transporting both the signaling and media components over a 4G LTE packet switched (PS) data path or the 5G user plane. This is in contrast to delivering voice using circuit switch (CS) methodologies, which requires 4G handsets to employ a secondary 3G radio.


How do we help?

Our portfolio of cloud native network functions (CNFs) can be deployed independently and at scale to deliver either elements of VoLTE/VoNR or a complete solution. We have session border controllers (SBCs), a complete IP Multimedia subsystem (IMS) core and a mobile telephony application server (TAS) plus management and orchestration systems to automate and troubleshoot deployments.


When to contact us.

Metaswitch has been at the forefront of VoLTE deployments and with our cloud native leadership, we are poised to lead the way in VoNR/Vo5G. We can augment these offerings with standardized VoWiFi or simply provide you an interconnect peering and roaming solution. Drop us a line if you are moving VoLTE to the cloud, upgrading your infrastructure for 5G or just need a consultation.


Perimeta SBC

Our session border controller can be deployed in any compute environment and used to provide security and interworking for VoLTE/VoNR access and interconnect. 

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Clearwater Core IMS

The first widely deployed virtualized network function, Clearwater is supporting millions of subscribers in some or the worlds largest network operators.

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Rhino TAS

Rhino supports the complete IR.92, IR.94 and IR.51 standards and supplementary calling services. It can also ensure interoperability with any legacy networks and voice applications.

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