Why voice quality is still a differentiator in today`s mobile networks

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Webinar voice quality

The proportion of mobile network traffic represented by voice communications has been steadily decreasing so now it represents around 2% of traffic compared with around 70% for video. We have also seen the rise of OTT voice services competing with operators. Additionally, the emergence of new voice codecs and complex network technology make measuring end-user voice quality more challenging.

However, voice remains the principle service for which most subscribers use their mobile device, and voice quality continues to be a critical factor in how they perceive their operator and OTT applications.

This webinar examines the significance of voice in today’s mobile networks and looks at the importance of an integrated metric that quantifies voice quality from an end-user perspective.

Watch the webinar presented by Dr. Jens Berger, Head of Applied Research, and Arnd Sibila, Technology Marketing Manager, and learn:

  • The significance of voice services in today’s mobile networks
  • The factors that determine voice quality
  • How to measure voice quality and how to troubleshoot issues
  • The increasing role of OTT voice services incl. comparison with operator voice services based on real measurements.


Arnd Sibila joined Rohde & Schwarz in 2012 as Technology Marketing Manager for Wireless Technologies and then led the Infrastructure Global Key Account Manager group. Since 2016 he focused on Technology Marketing for the Mobile Network Testing market segment. Previously, Arnd gained 21 years of experience at Siemens Communications and Nokia Siemens Networks where he held various technical and management positions in the field of Wireless Communication Systems and Mobile Networks Product Lifecycle (Product Management, Product Line Management, System Architecture, CTO, Business Development, Portfolio Management and Product Qualification) covering nearly all wireless technologies (LTE-Advanced, LTE, WCDMA/HSPA, WiMAX, WiFi, etc.).

Arnd Sibila