asterisk users - Sep 2005 - DID problem with calls from analog to ISDN

hi all,

I have this anoying problem with Direct in Dial, when someone calls
from an extern analog phone to my isdn number, Asterisk is not waiting
for the DID numbers the caller dials after the main-number.

Version: Asterisk 1.0.9-BRIstuffed-0.2.0-RC8n, with junghanns quadbri

zapata.conf:

switchtype = euroisdn
signalling = bri_cpe
faxdetect=incoming
pridialplan = unknown
prilocaldialplan = unknown
echocancel=yes
echotraining = 100
callerid=asreceived
usecallerid=yes
overlapdial=yes
immediate=no
;-------------------------------------------------------------------------------
group = 1
context=isdn-buero
channel => 1-2
channel => 4-5

group = 2
context=isdn-res
channel => 7-8
channel => 10-11

zaptel.conf:

loadzone=nl
defaultzone=nl
span=1,1,3,ccs,ami
bchan=1-2
dchan=3
span=2,1,3,ccs,ami
bchan=4-5
dchan=6
span=3,1,3,ccs,ami
bchan=7-8
dchan=9
span=4,1,3,ccs,ami
bchan=10-11
dchan=12


To me it looks like immediate=no doesn't do anything.