@waqqas31 It could be caused by the connection to your Doorbell. I’d recommend checking the RSSI on the Device Health page to check if the Doorbell is receiving a strong wifi signal. We also have some additional troubleshooting tips specifically for audio and sound concerns in our Help Center here. If this persists, please give our support team a call at one of the numbers available here so they can look into this further and offer more advanced assistance. If you are outside of the US, please visit here to see how to contact support.