The program "CallFlow" http://www.voice2sniff.org/callflow/ reads Ethereal network 
traces and makes simple H.323 call flow diagrams. I should not be too difficult to 
adapt it to SIP...

- Jerry


-----Original Message-----
From: Bart Vandewoestyne [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 18, 2003 8:40 AM
To: [EMAIL PROTECTED]
Subject: [Sip-implementors] Drawing call flows


Dear SIP-people,

As a computerscience student from Belgium, I'm trying to write a SIP
implementation for my thesis.  Next to the implementation of course, I
will have to write a text about it.  I will need to put a lot of
call-flows in that document and I was wondering if there existed
programs that are good specifically at generating call-flow diagrams. 
For those of you who have either one of the books "SIP Demystified"
from Gonzalo Camarillo or "SIP: understanding the Session Initiation
Protocol" from Alan B. Johnston: i like the graphics and call-flows
from those books.

Does anybody know about a good program that runs on Linux to make that
kind of graphics?  I already know xfig and dia, but as far as I know,
they don't have specific support for drawing call-flows like the ones
I mean.  I was just wondering if there existed special tools for that,
or if i really have to draw them line by line...

Tnx,
Bart

-- 
Ing. Bart Vandewoestyne               Bart.Vandewoestyne_at_pandora.be
Hugo Verrieststraat 48                         GSM: +32 (0)478 397 697
B-8550 Zwevegem                  http://users.pandora.be/vandewoestyne
----------------------------------------------------------------------
"Any fool can know, the point is to understand." - Albert Einstein
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