Outbound isdn calls hanged up immediately

Hi!
I’m having problems with my asterisk and misdn…
Inbound calls are working perfectly but outbound are not, but they are getting hung up immediately when the remote party picks up.
From CLI:
Executing [024551263@default:1] Dial(“IAX2/trunk_werner2christian-2”, “mI SDN/1/024551263”) in new stack
P[ 1] read_config: Getting Config
P[ 1] * CALL: 1/024551263
P[ 1] I SEND:SETUP oad:41 dad:024551263 pid:4
– Called 1/024551263
P[ 1] I IND :NEW_CHANNEL oad:41 dad:024551263 pid:4 state:CALLING
P[ 1] I IND :SETUP_ACKNOWLEDGE oad:41 dad:024551263 pid:4 state:CALLING
P[ 1] I IND :ALERTING oad:41 dad:024551263 pid:4 state:CALLING_ACKNOWLEDGE
P[ 1] Starting Tones, we have inband Data
– mISDN/1-u8 is ringing
P[ 1] I IND :smiley:ISCONNECT oad:41 dad:024551263 pid:4 state:ALERTING
P[ 1] --> Inband Info Avail, not sending RELEASE
P[ 1] * IND : HANGUP pid:4 ctx:misdn dad:024551263 oad:024551263 State:DISCON NECTED
P[ 1] I SEND:RELEASE oad:41 dad:024551263 pid:4
== Spawn extension (default, 024551263, 1) exited non-zero on ‘IAX2/trunk_wern er2christian-2’
– Hungup 'IAX2/trunk_werner2christian-2’
P[ 1] I IND :RELEASE_COMPLETE oad:41 dad:024551263 pid:4 state:CLEANING
P[ 1] Cannot hangup chan, no ast

Any suggestion is welcome.