Step 4 Click Submit All Changes.
Configure the Cipher List
You can specify the cipher suites that the phone TLS applications use. The specified cipher list applies to all
the applications that use the TLS protocol. The TLS applications on your phone include:
• Customer CA Provisioning
• E911 Geolocation
• Firmware/Cisco Headset Upgrade
• LDAPs
• Picture Download
• Logo Download
• Dictionary Download
• Provisioning
• Report Upload
• PRT Upload
• SIP over TLS
• TR-069
• WebSocket API
• XML Services
• XSI Services
You can also specify the cipher suites with the TR-069 parameter
(Device.X_CISCO_SecuritySettings.TLSCipherList) or with the the configuration file (cfg.xml). Enter a
string in the configuration file in this format:
<TLS_Cipher_List ua="na">RSA:!aNULL:!eNULL</TLS_Cipher_List>
Before you begin
Access the phone administration web page, see Access the Phone Web Interface, on page 104.
Procedure
Step 1 Select Voice > System.
Step 2 In the Security Settings section, enter the cipher suite or the combination of cipher suites in the TLS Cipher
List field.
Example:
Cisco IP Phone 8800 Series Multiplatform Phone Administration Guide for Release 11.3(1) and Later
129
Cisco IP Phone Configuration
Configure the Cipher List
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