Usually, jitter is experienced when the network being used is not stable.
Please check whether your network and connection status are stable. If not, switch to a more stable Wifi or 4G network.
If the issue persists even on a stable network, please contact Temasys Support by raising a ticket on our Support Portal or emailing us at firstname.lastname@example.org.
Please include the following information:
Other Audio Troubleshooting Documentation you may wish to see: Echo, No Audio on call