Description
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.
Resolution
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
More Information
Product Type
VP59
, T58A with Camera
, SIP-T58A
, SIP-T56A
, SIP-T57W
, SIP-T54W
, SIP-T53W
, SIP-T53
, SIP-T54S
, SIP-T52S
, 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
Version
All

200/200
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