Call dissapears from Realtime page if longer than 1 hour...

[cursor]

A customer with Queuemetrics 1.4.7.1 is complaining that if a call with an agent lasts for more than 60 minutes it dissapears from the Realtime page.  I can find the call in the reports so the information is not lost.  I have not seen this personally but the supervisor claims that it has happened to them twice now.  The agent is still talking to the customer but they cannot see the call in the realtime monitor page.

Is this possible?  Is there a max time setting for the realtime page?

[QueueMetrics]

This is so because on many CCs a call that lasts one hour is impossibly long, so QM thinks it's a mistake.
This can of course be set. see http://queuemetrics.com/faq.jsp#faq-030-disappear