Andrew Bonwick
Vice President of Product Development at Relm Insurance
Madhav Sheth
CEO of Ai+ Smartphone
Stephen Rose
CEO Render Networks

In a telecom industry laser focused on 5G rollouts and headline grabbing data speeds, Vodafone Idea (Vi) has quietly pulled off a different kind of win one rooted in real world performance and the basics of mobile connectivity.
According to the June 2025 Independent Drive Test (IDT) conducted by the Telecom Regulatory Authority of India (TRAI) across the UP West service area, Vodafone Idea emerged as the clear leader in voice quality, topping the industry on the Mean Opinion Score (MOS) the global standard for call clarity.
Vi Leads Where It Counts
Vodafone Idea posted an average MOS of 4.37, beating both Airtel (3.94) and Reliance Jio (3.79). BSNL, the state-run operator, trailed significantly with a score of 2.38.
But it’s not just about the average. Vi also had the highest share of “Excellent” rated calls, with 86.08% of its voice samples scoring between 4 and 5 on the MOS scale a metric that measures how clearly a human voice is heard on a call. In comparison, Jio registered 65.2%, and Airtel 78.57%.
Also Read: Vodafone Idea Is Turning Loyalty Into Luxury With Its Priority Program
Why Voice Quality Still Matters in 2025
While telecom headlines are dominated by 5G speed tests and data monetisation, voice calls remain the most widely used and critical service especially on the move. Highways, inter-city routes, and rural zones are where network stability is truly tested, and Vi’s showing in these zones speaks volumes.
TRAI’s test was conducted using calls made within the same operator’s network, across multiple technologies (2G to 5G) in auto mode, offering a holistic view of each provider’s voice performance in real-world conditions.