asterisk users - Apr 2004 - T1 going down

I have an * system backending a Fujitsu 9600 system.  The interface is a 
P2P T1 circuit using E&M wink.

At 6PM every evening the T1 circuit goes down.  I don't have any cron or 
'at' jobs that fire at this time.  Does anyone have any insight?

Thanks,

-- 
Michael Welter
Introspect Telephony Corp.
Denver, Colorado
+1 303 674 2575
mike@introspect.com
www.introspect.com