search for: 001_06221

I have got the change to set op an Asterisk PBX for one department in a large organisation. This means that in instead of connecting the Asterisk direct to the PSTN thought E1 interface (ISDN) I have to connect thought the big PBX central (IS3000).(http://pbcextra.net/commonnet/marcom/pdf/001_06221.pdf) Is there any body who has experience with this? The right size of connection between the Asterisk and the IS3000 is a E1 interface (30 channels). Which cards can I use? Are the cards on (http://asterisk.org/index.php?menu=hardware) the only ones or are they the only ones you have tested?...