Hello,
Brian helps me a bit with that config issue. After some hints i figured out, that i misstyped the Dialstring.
this didnt work:
<action application="bridge" data="sofia_contact(*/${dialed_extension}@${domain_name})"/>
but this works (attention on the Dollar Sign and the curly braces around the sofia_contact)
<action application="bridge" data="${sofia_contact(*/${dialed_extension}@${domain_name})}"/>
With * for all sip_profiles, like the wiki described it.
An alternate could be the user/username dialstring, but i am happy with the sofia_contact.