-- 1)  Select "System setting" > "Advanced setting"; 
-- 2)  Enter the password required (empty by default) ; 
-- 3)  Select "SIP" > "Account SIP"; 
-- 4)  Select one of the accounts you want to set, you can configure 
the following parameters 
- Enable account*: Select Enable 
- Number of lines: Default is 2 
- Description: Description of this account 
- Display name: The name displayed on the screen 
- Authentication user: The authenticated users are matched 
with the SIP server (by default with the same account) 
- Account*: The account matches with the SIP server (extension 
number) 
- User password*: The user password matches with the SIP 
server 
- SIP Server*: The primary SIP server, all calls through this 
server 
- Out Bound Server: The outbound SIP server 
- STUN Type: Enable/Disable STUN feature 
- STUN: Input STUN URL 
- Auto Answer: Enable/Disable the auto-answer feature for this 
account 
* Note: When you making the settings, you can press Save to 
apply them, and then you can see the status icon in the LCD is 
idle.   The parameters with the * mark above must be 
set. 
-- 1)  Select “System setting" > “Advanced setting"; 
-- 2)  Enter the password required (empty by default) ; 
-- 3)  Select “SIP" > “Account SIP"; 
-- 4)  Select “Enable account" > “Disable"; 
-- 5)  Select “Save" to save settings