Is there easy way to get CDR for calls that dialed 0?

[1Jumbo]

Customer has a 5.2.1 S8800. They want CDR reports on how many stations are calling the operator extensions. They are genuine attendants and they use LDN for inbound routing. Intra Switch CDR is turned on. We have tried adding the attendant "extensions" to the intra-switch-CDR table but the system says that extension cannot be administered for intra-switch CDR.

The client has multiple attendants at multiple locations so tenant partitioning is probably used which would likely prohibit using attendant vectoring.

Any ideas?

Thanks.