192.168.1.30 - - [01/Dec/2017:04:41:32 +0000] "GET /app/provision/000XXXXXXXXX-phone.cfg HTTP/1.1" 404 168 "-" "FileTransport PolycomSoundPointIP-SPIP_330-UA/3.3.5.0247"
This is the key line. In my experience, the polycom phones would not provision until I told the provision server to send...