Yealink SIP-T19 E2 T4 Series, Administrator'S Manual

Page: 844 / 981

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series IP Phones
822
AES keys must be 16 characters and the supported characters contain: 0-9, A-Z, a-z and the
following special characters are also supported:
# $ % * + , - . : = ? @ [ ] ^ _ { } ~
.
3.
Click
Confirm
to accept the change.
To configure AES keys via phone user interface:
1.
Press
Menu
->
Advanced
(default password: admin) ->
Auto Provision
.
2.
Enter the values in the
Common
and
MAC-Oriented AES
fields.
AES keys must be 16 characters and the supported characters contain: 0-9, A-Z, a-z and the
following special characters are also supported:
# $ % * + , - . : = ? @ [ ] ^ _ { } ~
.
3.
Press the
Save
soft key to accept the change.
Encrypting and Decrypting Configuration Files
Encrypted configuration files can be downloaded from the provisioning server to protect against
unauthorized access and tampering of sensitive information (for example, login passwords,
registration information).
Yealink provides three encryption tools:

Config_Encrypt_Tool.exe (via graphical tool for Windows platform)

Config_Encrypt.exe (via DOS command line for Windows platform)

yealinkencrypt (for Linux platform)
The encryption tools encrypt plaintext configuration files (for example, account.cfg,
<y0000000000xx>.cfg, <MAC>.cfg) (one by one or in batch) using 16-character symmetric keys
(the same or different keys for configuration files) and generate encrypted configuration files
with the same file name as before.
Note
You can also configure the <MAC>-local.cfg files to be automatically encrypted using
16-character symmetric keys when uploading to the server (by setting the value of the parameter
“static.auto_provision.encryption.config” to 1).