P a g e 10
Set “
Yes
” to force the
FAP to Check SIP address of the Request URI in the incoming SIP message; if it
doesn't match the SIP server address of the account, the call will be rejected.
Additionally, the FAP has built-in mechanism that detects and stops the spam SIP calls from ringing the
phones. Please see below the settings.
-
Validate Incoming SIP Messages:
Set “
Yes
” to Validate incoming messages by checking caller ID and CSeq headers. If the message does no
t
include the headers, it will be rejected.
-
Check SIP User ID for Incoming INVITE:
Set “
Yes
” to enable checking the SIP User ID in the Request URI of incoming INVITE; if it doesn't match the
FAP SIP User ID, the call will be rejected. Direct IP calling will also be disabled if checked.
-
Authenticate Incoming INVITE:
Set “
Yes
” to Challenge the incoming INVITE for authentication with “SIP/401 Unauthorized” message
Figure 10 : Settings to Block Anonymous Call
