Allow only specific IP...

[Yealink_Daniel]

Hi,

According to your application scenario, our IP phone can disable the IP call feature, in this way all IP direct calls will be forbidden.
Please follow the steps below:
1.Login the web UI -> Phone -> Features -> “Allow IP Call” = “Disabled” -> Confirm
   
2. Access to web GUI->Account->Advanced tab, set the “Accept SIP Trust Server Only” value to “Enabled”. Click confirm button to accept the changes.
One point need to be attentive, please enable the SIP Trust parameter of corresponding accounts.
   
By auto provision :
Set two parameters via auto provision. The auto provision sentences are as follow:
#!version:1.0.0.1
##The x of the parameter "account.x.sip_trust_ctrl " ranges from 1 to max accounts. For example, x ranges from 1 to 2 of T20.
##When you want to enable this sip trust control for account 1, fill 1 to “account.1.sip_trust_ctrl”.
account.X.sip_trust_ctrl=1
##Enable or disable the phone to dial the IP address directly; 0-Disabled, 1-Enabled (default);
features.direct_ip_call_enable = 0

If there is any questions, please feel free to contact me.

Thank you.

Best Regards