asterisk users - Aug 2004 - Error message "phone_mini_packet Read returned -1" and strange Internet PhoneCard behavior

I have an Internet PhoneCard for my IBM T30 running Linux RH9
2.4.20-31.9 and Asterisk 0.9.0.
 
I have installed the appropriate Openh323 drivers.
 
The card works and I can call to an extension that plays a recorded
message, hang-up, call again and so forth.
 
Suddenly, the subject error message starts appearing in the log,
something goes into a loop, everything else in the system slows to a
crawl.
 
If I pop the card out, the loop and the slow down disappear.
 
There seems to be no relationship between actively using the card and
the slow down.
 
I have observer the slowdown start minutes after the last call or the
slow down may start during calls or the slow may just start even if no
call has been made.
 
I have not noticed a failure if asterisk is not running.
 
I have searched on numerous variations of the message, driver, and
asterisk with no luck.
 
Any thoughts???
 
Jim O'Brien
 
 
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