[Serusers] IP address spoofing

[Nick Hoffman]

Hi guys. Say you have this setup, with an account for the caller on both 
Asterisk and SER:
    Caller -> SER -> Asterisk -> VoIP Provider -> Callee

If the caller were to spoof SER's IP address and place a call directly to 
Asterisk (thus circumventing SER), what would happen?

If the call was in fact setup, obviously the caller would not receive any 
audio from the callee. However, would the call be setup? When Asterisk 
responds to the caller's request and sends SIP packets back (to SER), 
would SER say "I don't know anything about this call! Asterisk, kill this 
call please."?

Thanks for your input!
-- Nick
e: nick.hoffman at altcall.com
p: +61 7 5591 3588
f: +61 7 5591 6588

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