[OpenSER-Users] Interop dialog/sst - acc module to produce CDR for dialog-expired call

Dear all I am looking for a possibility to somehow assure, that the accounting CDR produced will not be infinite, if a call is interrupted without sending a final BYE. I thought to do it like this: Use SST module to create certain time limit (e.g N) for a session. Use dialog module to cut dialog after certain time expired (e.g. 2N). As long as SST creates active sessions (i.e. the client is alive) the dialog does not expire, if the call is interrupted, the dialog expires worst case with 2N time accounted. The problem is, I cannot generate CDR to stop accounting for a certain call where the dialog expired. Is this possible to do in a way? Thanks for your help. Best regards Sebastian