Good Video but choppy audio

Hi

We are seeing an issue where the video on both the parties are clear but the audio is choppy on one end. We are observing that the AudioJitter has a value higher than 30 msecs. But as per WebRTC stats, the video is transmitting at around 300 kbps but the audio stream usually has a much lower transmission rate of around 40 kbps (which makes sense). But we are hearing complaints that the video throughout the call is clear but audio on one end is very choppy. What could be the reason for this?

Thanks
Vinoth