Callerid problem

dear community,

have the following problem:
have 2 asterisk servers, one is my master server that send out the trunks,
and the second is this one, with all extensions.

all calls outgoing going vom server 1 to server 2.

and now i have a problem with my caller id.
in server 1 i see in debug log that the caller id is correct.

then in server 2 which receives the calls from server 1,
he hase the caller id “accountnumber from trunk”…

what i can do that i have the correct cid on server 2?

thank you very much