You have posted this under the Fongo Mobile section, which is for the app. This might be why you have got a lack of responses.
I assume from your posts now that you are a Fongo Home Phone customer.
I think the only other thing I would try in your case is a different phone, but I have a feeling it might be the ATA itself.
Can the person on the other end of the call hear the crackling? That might give you an idea of where it might be coming from.
As you are a Home Phone customer you can get support directly from them. The forum is full of great people but at the end of the day the support here is just from other people like you and me.
What you need to do is open a support ticket with them on their ticket system >
https://support.fongo.com/hc/en-us/requests/newThere is some information on this process here >
https://support.fongo.com/hc/en-us/arti ... l-support-You should get a response from them fairly quickly, but if you don't PM your ticket number to Fongo Support here on the forum
ucp.php?i=pm&mode=compose&u=7852Sorry for not replying to this earlier but when I saw it was in the mobile section and you had crackling, absolutely nothing came to mind of how I could help. If you can confirm the issue is with your home phone instead, I will move the thread to the right section.