[Kamailio-Users] Accounting: How to avoid a fraudulent BYE with lower CSeq?

[Juha Heinanen]

Iñaki Baz Castillo writes:

 > - alice sends this BYE:
 > 
 >   BYE sip:PSTN_NUMBER at PSTN_GATEWAY SIP/2.0
 >   Route: <sip:PROXY_IP>
 >   Route: <sip:alice at ALICE_PHONE_IP>

in this particular case, you could call to_gw() and find out that
request is going to gw and, if so, drop the request it is has more than
one route header (the one for the proxy itself).

-- juha