Hello! I am using an SPA3102 as an ATA at a remote location. This problem ONLY occurs on outbound calls. When I dial ##70 to park a call, it parks the call, I hear the parked number "71" and then oddly I hear ringing. Aparently it is redialing the original outbound phone number I called for a 2nd time so the called party then gets a call waiting beep in their ear. Basically now I have called the same person twice. The asterisk log shows that my extension has placed 2 calls to that party. It only occurs on outbound calls and only occurs when parking a call. It does NOT occur when doing a blind transfer to another extension, such as ##200. Inbound call parking seems to work fine. I have deleted all the vertical service activation codes in the SPA-3102 just to make sure they weren't causing any strange behavior.