this is a sip scanner. When launched against
ranges of ip address space, it will identify any SIP servers 
which it finds on the way. Also has the option to scan hosts 
on ranges of ports.

identifies working extension lines on a PBX. A working 
extension is one that can be registered. 
Also tells you if the extension line requires authentication or not. 

a password cracker making use of digest authentication. 
It is able to crack passwords on both registrar servers and proxy 
servers. Current cracking modes are either numeric ranges or
words from dictionary files.

able to manage sessions created by the rest of the tools
and export to pdf, xml, csip and plain text.

responds to sipwar and sipcrack SIP messages with a message that
causes old versions to crash.