Thursday, September 6, 2018

Radiator GBA/BSF Module: Seamless authentication to VoLTE Supplementary services

VoLTE (Voice over LTE) calling is now being used by mobile carriers in their networks all over the world.

With VoLTE calling, there is no dependency on the legacy circuit-switched voice network to be maintained, which has many benefits for the carrier infrastructure. As a part of this, the carrier network will need an easy way to authenticate also to VoLTE supplementary services, such as call forwarding, knocking and call barring.

For this need, we have created Radiator GBA/BSF Module on top of our Radiator. Radiator GBA/BSF Module makes authentication for VoLTE supplementary services easy by using General Bootstrapping Architecture (GBA). In addition to this GBA enables also extending SIM authentication to any operator WWW services. In addition, SIM authentication itself has authentication federation support, which can be used to produce services across virtual and other operators.

Our product, Radiator GBA/BSF Support Module works as an authentication proxy between the end-user UE and HSS. It authenticates user requests, and also separates the authentication procedure and the Application Specific server (AS) specific application logic to different logical entities.

Radiator GBA/BSF Architecture

Main technical product features

Radiator GBA/BSF Module is already being used in live networks in multiple countries. The main technical features include:
  • Authenticating LTE subscribers for VoLTE supplementary services such as multimedia telephony service (MMTel) and multimedia telephony application server (MTAS)
  • BSF server (Ub interface)  
  • Authenticating Proxy (NAF/AP, Ut/Ua interface)
  • Interoperable with all major EPC vendors (Nokia, Ericsson, Huawei)
  • Interoperable with all major handset vendors (Samsung/Android, Apple, Nokia, Microsoft)
Would you like to know more?

Recently we introduced release 1.5.0 of Radiator GBA/BSF Module, with more focus on configuration examples and installation process - making it even easier product to implement in different carrier infrastructures. Our team at is happy to share with more info about our Radiator GBA/BSF Module product.