Sometimes, the user will receive strange calls which are not from registered SIP server; these are so called ghost calls. It will disturb and confuse the user.

 

1. Disable IP Call feature:

IP Call feature allow the SIP phone to make and receive calls by IP address (Without SIP account)

Enable or Disable IP Direct Call feature:

WEB UI path:

Features->General Information-> Allow IP Call

 

Auto provisioning parameter:

# 0-disable; 1-enable; default value is 1 (Enable)

features.direct_ip_call_enable =

 

2. Enable SIP trust feature:

SIP Trust feature allow the phone to only accept the message from the trusted server for specific account.

 

Only by auto provisioning parameter:

sip.trust_ctrl=
0-Disabled

1-Enabled, users cannot accept the IP call

 

 

If there are any other questions, please feel free to contact with ticket.yealink.com

 

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