[Asterisk-Users] Transparently Routing German pri through Asterisk

[Kib Eki]

Hi,

at the moment we have in Avaya Integral PBX with german pri (30 lines).  
We want to smouthly migrate to an Asterisk server.
For this reason: Is it possible to route the external german pri (E1) 
through Asterisk server to that Avaya PBX?

I think at first we need a Digium e1 card 4-Port. But how do we have to 
configure the routing of the whole PRI?

I really would appreciate any sample config.

Thanks,
Kib