asterisk users - Aug 2005 - Telstra/Sangoma bouncing E1 D Channel

We just installed a box into a Melbourne site with a Sangoma A101U, it 
is running the latest Wanpipe drivers and has Asterisk on it that 
someone had compiled manually from source.  This initially worked fine 
but for the sake of consitancy we removed the existing asterisk and used 
emerge to install it.

During this time the box was off of the e1 for about 8 hours and when it 
was brought back up with the new build of asterisk the E1's D channel is 
bouncing up and down.

e.g.

Aug 23 14:36:01 VERBOSE[8464]:   == Primary D-Channel on span 1 up
Aug 23 14:36:02 VERBOSE[8464]:   == Primary D-Channel on span 1 up
Aug 23 14:36:03 VERBOSE[8464]:   == Primary D-Channel on span 1 up
Aug 23 14:36:04 VERBOSE[8464]:   == Primary D-Channel on span 1 up
Aug 23 14:36:05 VERBOSE[8464]:   == Primary D-Channel on span 1 up
Aug 23 14:36:06 VERBOSE[8464]:   == Primary D-Channel on span 1 up
Aug 23 14:36:07 VERBOSE[8464]:   == Primary D-Channel on span 1 up

None of the configs have changed and the only difference is that we used 
the gentoo ebuild rather than doing it from source manually.  Asterisk 
is even the same version.

We are using libpri-1.0.9 zaptel 1.0.9 and Asterisk 1.0.9

It seems like a Telstra fault as there are no alarms showing, but the D 
chan just keeps bouncing, Telstra of course will not beleive me it could 
possibly be at there end.

Has any one here encountered anything like this before?


Regards,



Andrew Thrift