asterisk users - Dec 2005 - quadbri, isnd, netherlands: callerid not working

hello,

We installed an asterisk box last weekend dealing with 2 incoming groups
of ISDN lines, and some 15 polycom phones. Works quite OK so far. But we
have some problems that somehow I cannot resolve so far :-(

The most urging issue is getting callerID to work.
When I check logfiles, I see lines like
'Activating voice calls from '065MYNUMBER' to '010OFFICE'
But when I dump the variables (call Macro dumpvars in Asterisk@Home, or
NoOp in the extension plan), the CALLERID variables just remain empty.

The box is an asterisk@home 1.5 install, with the junghanns bristuff
installed (rc8o) and a quadbri card. Configuration has the things I
could find for solving callerID issues
(immediate=no, usecallerid=yes, hidecallerid=no). The provider is KPN
Netherlands.

What more can I do to resolve this issue?

Thanks in advance,

Mark
-- 
 They say if you play a Micro$oft CD backwards, you hear satanic messages...
 That's nothing, because if you play it forwards, it installs Windows!