In this report, updated for 2021, we examine and analyze:

• the highest and lowest performing countries for connectivity
• the best and worst for audio quality
• the most and least consistent countries for audio quality
• how the two big hitters, China and the US, compare against one another.

Throughout this report, using unique insights from our global inbound voice call testing results, we will discover what countries are underperforming and why. We will also investigate who had the most improved audio quality overall, and uncover trends in performance emerging since our first Global telecoms quality of service report, in 2018

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