asterisk users - Dec 2005 - spool calls always failing with congestion (AST_CONTROL_CONGESTION)

I have an asterisk 1.2 (beta 1) install trying to use the spool feature but
the call always fails.  I confirmed a manually dialed call on the same trunk
works fine.  The error always ("reason 8") appears to be
AST_CONTROL_CONGESTION.  But this is not reasonable..here is the log:
 
    -- Attempting call on IAX2/UNLIMITEL2/5194392629 for application
txfax(/tmp/ast_fax-1135802388.61240.1804289383.0|caller) (Retry 1)
    -- Call accepted by 64.26.157.230 (format ulaw)
    -- Format for call is ulaw
       > Channel IAX2/UNLIMITEL2-2 was never answered.
    -- Hungup 'IAX2/UNLIMITEL2-2'
Dec 28 15:39:49 NOTICE[22791]: pbx_spool.c:243 attempt_thread: Call failed
to go through, reason 8
 
Is there a know problem in 1.2 beta 1?  This seemed to work in 1.0.8?
 
Thanks,
Michelle
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://lists.digium.com/pipermail/asterisk-users/attachments/20051228/355a8a39/attachment.htm