I'm just curious if my situation is normal and/or if someone has a technical explanation for my experience. Immediately after installing my ATA call quality was hit and miss. A call to my wife was fine. A call to my mom was garbled she said she couldn't hear what I was saying. A call to my friend was dropped (could have been his crappy cell service). For the first day or so when I picked up the receiver there were a series of short beeps before I got a dial-tone.

Sometime after 2-3 days the beeps before getting a dial-tone went away. Calls to everyone are now good. Is there something in the service that changes to make things improve over time?