Yealink SIP-T21 E2

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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Encrypting and Decrypting Files
Yealink IP phones support downloading encrypted files from the server and encrypting files
before/when uploading them to the server. You can encrypt the following files:
 Configuration files: MAC-Oriented CFG file (<MAC>.cfg), Common CFG file
(y0000000000xx.cfg), MAC-local CFG file (<MAC>-local.cfg) or other custom CFG files
(e.g., sip.cfg, account.cfg)
 Contact Files: <MAC>-contact.xml
To encrypt/decrypt files, you may have to configure an AES key.
Configuration Parameters
Procedure
Configuration changes can be performed using the following methods.
Central
Provisioning
(Configuration
File)
<y0000000000xx
>.cfg
Configure whether to only download and
resolve the encrypted files.
Parameter:
static.auto_provision.update_file_mode
Configure the decryption method.
Parameter:
static.auto_provision.aes_key_in_file
Configure AES keys.
Parameters:
static.auto_provision.aes_key_16.com
static.auto_provision.aes_key_16.mac
Specify if the contact file is encrypted when it is
uploaded from the phone to the server.
Parameter:
static.auto_provision.encryption.directory
Specify if the MAC-local CFG file is encrypted
when it is uploaded from the phone to the
server.
Parameter:
static.auto_provision.encryption.config
Web User Interface
Configure AES keys.
Navigate to: