Cisco 8851 User Manual page 9

Make sure that your DHCP router is configured to use option 66 to automatically instruct
devices with the URL for auto provisioning. For more information, please refer to your router
documentation or contact your network administrator.
Phone's first boot or user-initiated reboot
The auto-provisioning process will start during the phone's first boot or after the reboot
process has been initiated by the user. The DHCP server will instruct the phone from where to
pick up an appropriate configuration file. If everything is done as described above, you should
have successfully registered your phone to PBXware.
TFTP or HTTP & HTTPS
Log in to the phone's web administration interface
Open a new browser window and enter your phone's IP address in order to access the phone's
web administration interface login screen. Example: http://192.168.1.22
Click Admin Login in the top right corner of the administration interface.
Click Advanced in the top right corner of the administration interface.
Click Voice at the top navigation menu.
Click Provisioning found in the sub-menu.
You can use TFTP or HTTP & HTTPS protocols in order to auto-provision your Cisco phone.
TFTP
This section describes how to use TFTP protocol in order to register the Cisco phone.
In the Profile Rule field, enter tftp:// followed by a Hostname or an IP Address, then
followed by /$MA.cfg.