Enhancing Voice Services during Roaming with VoLTE:
Benefits and Performance Insights

VoLTE Technology Unveiled: Exploring the Benefits and Insights of Maximizing Voice Quality in Roaming.

Currently, there is a noticeable trend in the telecommunications market where 3G technology is being phased out and replaced by Voice over LTE (VoLTE) both in home networks and during roaming. The migration of voice services to 4G LTE facilitates phase-out strategies for legacy technologies, freeing up spectrum bands for more spectrum-efficient 4G and 5G technologies.
This is also an important step towards all-IP based communication, as LTE technology will transmit voice and data services completely over IP.

From a voice services perspective, what are the actual benefits of these new services for the end customer when roaming?

To answer this question, SEGRON conducted extensive tests on the European networks using its GSE (Global Service Enabler) platform to measure the key voice related KPIs in the roaming case, and to compare the results of legacy network technology such as 2G & 3G with those of a modern VoLTE network. The main KPIs considered were call setup time, voice quality and the calling line identity (CLI) availability. These indicators are crucial for service utilization and the quality of experience (QoE) for mobile customers. We found that VoLTE significantly enhances the mobile voice experience<. The improvement is primarily evident in shorter connection setup times and increased Mean Opinion Score (MOS) for voice quality. Additionally, the presence of the CLI is leading to a significant improvement of the quality of experience for the end customers and a better service utilization.