Yealink SIP-T21 E2

Configuring Security Features
953
http://<phoneIPAddress>/servlet?p=settings-
autop&q=load
Phone User Interface
Configure AES keys.
Details of Configuration Parameters:
Parameters
Permitted Values
Default
static.auto_provision.update_file_mode
0 or 1
0
Description:
Enables or disables the IP phone only to download the encrypted files.
0-Disabled
1-Enabled
If it is set to 0 (Disabled), the IP phone will download the configuration files (e.g., sip.cfg,
account.cfg, <MAC>-local.cfg) and <MAC>-contact.xml file from the server during auto
provisioning no matter whether the files are encrypted or not. And then resolve these files
and update settings onto the IP phone system.
If it is set to 1 (Enabled), the IP phone will only download the encrypted configuration files
(e.g., sip.cfg, account.cfg, <MAC>-local.cfg) or <MAC>-contact.xml file from the server
during auto provisioning, and then resolve these files and update settings onto the IP
phone system.
Web User Interface:
None
Phone User Interface:
None
static.auto_provision.aes_key_in_file
0 or 1
0
Description:
Enables or disables the IP phone to decrypt configuration files using the encrypted AES
keys.
0-Disabled
1-Enabled
If it is set to 0 (Disabled), the IP phone will decrypt the encrypted configuration files using
plaintext AES keys configured on the IP phone.
If it is set to 1 (Enabled), the IP phone will download <xx_Security>.enc files (e.g.,
<sip_Security>.enc, <account_Security>.enc) during auto provisioning, and then decrypts
these files into the plaintext keys (e.g., key2, key3) respectively using the phone built-in key
(e.g., key1). The IP phone then decrypts the encrypted configuration files using