[asterisk-users] Securing Asterisk - How to avoid sending, "SIP/2.0 603 Declined"

[Bruce B]

Hello,

I am wondering if there is a way to drop SIP packets for generic
transactions? For example, only SIP PEERs are allowed to call in and receive
ACK or Declined rather that those inviting a call who are not PEERs at all.

Currently my Asterisk setup sends, "*SIP/2.0 603 Declined" *to any stranger
invites because my dialplan includes Hangup(). Is there any way I can not
send a 603 declined so to mislead the probe runner?

Thanks
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