Weird Clicking While On Call --> Drops Call (OBi202)

[nkul26]

Hi All,
I have an OBi202. While on a call, I start to get this abnormal clicking sound for about 15 seconds and the the call drops and goes to a normal dial tone. The only time I get the click is when on a call, not when dialing or during dial tone. What can I do here to fix this? It is very annoying!

Thanks!