Yealink SIP-T58V/A - Accept SIP Trust Server Only

Configuring Advanced Features
293
2. Select the desired value from the pull-down list of Allow IP Call.
3. Click Confirm to accept the change.
Accept SIP Trust Server Only
Accept SIP trust server only enables the IP phones to only accept the SIP message from your SIP
server and outbound proxy server. It can prevent the phone receiving ghost calls from random
numbers like 100, 1000, etc. To stop this from happening, you also need to disable allow IP call
feature. For more information on allow IP call, refer to Allow IP Call on page 292.
Procedure
Accept SIP trust server only can be configured using the following methods.
Central Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure accept SIP trust server
only.
Parameter:
sip.trust_ctrl
Web User Interface
Configure accept SIP trust server
only.
Navigate to:
http://<phoneIPAddress>/servlet?m
=mod_data&p=features-general&q
=load