no calls in 2G network

Hey, i am trying to build a 2G network with an ip.access BTS (Model 165G DCS1800). So far I can see the network on the RF spectrum and SMS delivery is working fine. Unfortunately I cant send calls to other phones. The open-bsc sends a lot of error messages to the log when the BTS is booting, I am not sure if my configuration is ok. As attachments there are my configs and the logs of open-bsc and osmo-msc. Thanks for your Help! regards crx