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

 

VP59 , T58A with Camera , SIP-T58A , SIP-T57W , SIP-T54W , SIP-T53W , SIP-T53 , SIP-T48S , SIP-T46S , SIP-T42S , SIP-T41S , SIP-T40G , SIP-T40P , SIP-T29G , SIP-T27G , SIP-T23G , SIP-T23P , SIP-T21(P) E2 , SIP-T19(P) E2 , SIP-T33P(G) , SIP-T31(P)(G) , SIP-T30(P) , VP530 , SIP-T38G , SIP-T32G , SIP-T28P , SIP-T26P , SIP-T22P , SIP-T21P , SIP-T20P , SIP-T19P , SIP-T48G , SIP-T46G , SIP-T42G , SIP-T27P , SIP-T41P

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