Voice Over LTE Via Generic Access

NgnGuru Solutions provides on-site telecommunication training courses, customized & designed to meet and exceed customer expectations. Topics are presented by instructors rich in technical expertise, industry experience, and outstanding presentation style.

A 1 day VoLGA Training Course includes VoLGA overview, network architecture, protocols, procedures and interfaces..

Program Overview

VoLGA training provides good understanding of the VoLGA signaling network, architecture and protocols. This course is developed utilizing the latest learning and delivery techniques that offer unrivaled development opportunities.

Upon completion of this course, the participants will have a good understanding of:

  • VoLGA Overview
  • Service Requirements
  • Architecture and and reference points
  • Functional entities
  • Protocol architecture
  • Signaling

About VoLGA

The aim of VoLGA is to make traditional GSM/UMTS circuit switched (CS) services available to UEs accessing the EPS network via LTE. While it is not part of the VoLGA specifications to support other 3GPP or non-3GPP IP accesses, it is not excluded to use VoLGA over those other accesses.

The VoLGA service resembles the 3GPP Generic Access Network (GAN). GAN provides a controller node - the GAN controller (GANC) - inserted between the IP access network (i.e., the EPS) and the 3GPP core network. The GAN provides an overlay access between the terminal and the CS core without requiring specific enhancements or support in the network it traverses. This provides a terminal with a 'virtual' connection to the core network already deployed by an operator. The terminal and network thus reuse most of the existing mechanisms, deployment and operational aspects..

Intended Audience

Network & Telecom Engineers and Technical Staff involved in development, testing, and deployment requiring comprehensive details of VoLGA/LTE Network Architecture, procedures & operations.


Although this course requires no previous knowledge or understanding of VoLGA, a good understanding of telecommunication network and LTE technology would be beneficial.

For more information please send us a message or send an email to support@ngnguru.com.

Share this