Hi Don,

I have one example for SIP that can be found here:

https://sourceforge.net/project/showfiles.php?group_id=46209&package_id=114242

under "sipTransform". I was totally dependent on this guide to figure out how to use SIP:

http://www.aneg-dv.de/allegro/sip2/sip2_developers_guide.pdf

SIP is called a protocol but it is really a description of a terminal session. For example, this kind of  interaction:

        send carriage return
        wait for "login:"
        send a User ID
        wait for "Password:"

is the kind of programming that SIP entails . My application required integration with Cocoon so there's a lot of SAX handling in the code, but almost anything that can script a telnet session could be used. NCIP and probably any other protocol created in the last decade would likely be far preferable to SIP, yet I know there's not always other options out there for authentication.

art
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Art Rhyno
Systems Librarian, University of Windsor
http://librarycog.uwindsor.ca