We have 20+ 8600 series IP phones. Until now, I've had no problems getting them programmed. I have a new phone that will not allow me to enter programming. It does not respond to pressing the 7 and 8 during boot up. Nor does it display the firmware version. It does not accept the standard user id and password on the web interface. In the past, if the phone could not connect to the server, it defaulted to a screen showing the IP and MAC address. This device is requesting me to "enter config url". Labels on the bottom of the phone indicate it is a SIP enabled device. Our system is not set up for SIP. Have I been given the wrong phone? Is there a way to manually default the settings on the phone?