Manually Set The Phone Date And Time; Wireless Lan Security; Install A User Certificate From The Phone Administration Web Page - Cisco 8821 Administration Manual

Configuration on the Phone

Manually Set the Phone Date and Time

With certificate-based authentication, the phone must display the correct date and time. An authentication
server checks the phone date and time against the certificate expiry date. If the phone and the server dates and
times don't match, the phone stops working.
Use this procedure to manually set the date and time on the phone if the phone is not receiving the correct
information from your network.
Procedure
Step 1 From the phone administration web page, scroll to Date and time.
Step 2 Perform one of the following options:
• Click Set phone to local date and time to synch the phone to a local server.
• In the Specify date and time fields, select the month, day, year, hour, minute, and second using the

Wireless LAN Security

Cisco phones that support Wi-Fi have more security requirements and require extra configuration. These extra
steps include installing certificates and setting up security on the phones and on the Cisco Unified
Communications Manager.
For additional information, see Security Guide for Cisco Unified Communications Manager.

Install a User Certificate from the Phone Administration Web Page

You can manually install a user certificate on the phone if Simple Certificate Enrollment Protocol (SCEP) is
not available.
The preinstalled Manufacturing Installed Certificate (MIC) can be used as the User Certificate for EAP-TLS.
After the User Certificate installs, you need to add it to the RADIUS server trust list.
Before You Begin
Before you can install a User Certificate for a phone, you must have:
• A User Certificate saved on your PC. The certificate must be in PKCS #12 format.
• The certificate's extract password.
menus and click Set phone to specific date and time.
Cisco Wireless IP Phone 8821 and 8821-EX Administration Guide for Cisco Unified Communications Manager
Manually Set the Phone Date and Time
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