[VOIPSEC] Any free tool for SIP call tear down or SIP redirect ?

[Pjothi]

Dear all,

Are there any free tool available in the Internet for SIP call tear down or
SIP redirect or any other SIP / RTP security vulnerability exposing tool.

I would like to make a Demonstration on this for SIP or RTP, if no security
is used.

I tried skora.net sip-kill, the dependency NET: RawIP simply doesn't compile
on Suse 10 box. So, it would be great, if any of you can point me to the
right tool for a demonstration.

thanking you,

Cheers,
Pjothi