Are you sure that this is what is causing CCon to crash?
What is CCon version?
What type of database are you using? What are the machine specs for CCon and database? And how many calls do you have coming there per day? Are you using EVREFEX? If so, how big is your attach data?
I am very very sceptical about the cause being “too much data”; however, if this is the case, try DbDumpCommitFrequency and DbDumpMaxInsertsInProgress. Depending on the database type you can also play with SendBeginTransaction as well.