I too would also be curious to see what Cisco pointed you to if anything.


-----Original Message-----
From: Chuck [mailto:[EMAIL PROTECTED]]
Sent: Monday, July 08, 2002 6:18 PM
To: [EMAIL PROTECTED]
Subject: Re: h225 IE data [7:48352]


first off, I don't know the answer to your question. Having just sold a
couple of AVVID's, I am interested, though in toll fraud and how it is
pulled off. I know that in the PBX world there are or were certain timeout
settings that generally had to be adjusted down to zero so that a hacker
couldn't to an effective DoS and get dial tone. ( IIRC, hackers would use a
"blue box" and just keep pounding a PBX until it gave up and offered dial
tone. There were specific timeout settings that had to be zero to prevent
this, IIRC )

Chris, without revealing the specifics of your situation, were there / are
there specific Call Manager configurations you were able to change to
prevent this going forward?  Did Cisco point you to any specific links to
read up on?


""Chris Charlebois""  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> We have been experiencing some toll fraud with our CallManager / Unity
> system.  Thanks to CCM traces we were able to find out exactly how they
were
> getting in.  However, we still don't know who "they" are.  The ANI on the
> incoming calls was blocked (suprise suprise).  What I'm wondering if there
> is any information that we can get from the H225 data.  I know we won't be
> able to get the calling number, but maybe we can pull out what city they
are
> calling from, or what carrier they are using, or any information at all.
>
> It is possible that the FBI will get involved in this (the destination of
> these calls are countries that the FBI has an interest in) and, if they
do,
> I'm sure they have ways and means to get far more information than I do.
> I'm just courious.
>
> If anyone knows what can be learned from H225 and how, I'd appreciate it.




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