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eduardo:cisco:cucm:cucm-sconf

Secure Configuration File

Signed Configuration File

  • Signed by TFTP server
  • Prevents tampering with configuration files on TFTP server or in transit.

Encrypted Configuration File

  • Supported on:
    • 7905, 7912 SIP Phones
    • 797[015], 796[125], 794[125], 7931, 7911, and 7906 SCCP phones
  • If the phones has a certificate
    • CUCM uses the public key of the phones to encrypt the configuration file
  • If the phone does not have a certificate, the encryption key must be manually entered into the phone
    • 7905 and 7912 do not support CUCM PKI
    • 7940 and 7960 do not support CUCM PKI when running SIP
    • 7905 and 7912 have a writable web server
      • Copy and paste the key into the phone using web access to the phone
    • 7941 and 7960 have a readonly web server
      • Manually enter the key into the phone using the phone keypad

Encrypted ConfFile Configuration

Secure Mode

Phone Security Profile

  • Under System > Phone Security Profile
  • Create phone security profile

  • Check the TFTP Encrypted Config check box

Phone config

  • Apply the phone security profile to the phone(s).
  • For phone that do not have certificates, set a symmetric file encryption key in the Phone configuration window

Phone

  • Enter the symmetric configuration file encryption key into phones that do not have certificates
  • The key must match that configured on CUCM
eduardo/cisco/cucm/cucm-sconf.txt · Last modified: 2024/02/23 08:20 by 127.0.0.1