Once the phone has registered to CUCM, set Web Admin to Enabled in CUCM to enable the admin webpage interface.
Then configure Admin Password by specifying a 8-127 character string.
If wanting to keep the admin webpage interface access enabled long-term, then should utilize a secure profile with TFTP
encryption enabled.
For out of box (factory reset), will need to ensure the date and time is configured correctly.
Can set the Date & Time by syncing to the local machine or setting the Date & Time manually.
Can utilize either the internal Manufacturing Installed Certificate (MIC) or a custom User Installed certificate to be used as the
User Certificate for EAP-TLS.
Cisco Wireless IP Phone 8821 and 8821-EX Wireless LAN Deployment Guide
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