Can't obtain CDR reports on toll free numbers that have been CCRN'd

We have several toll-free numbers that "point" to the same POC in our contact center platform, so the CDR report on that system is useless for determining which call came in on which toll-free number. On the RingCentral UC side, these calls no longer appear in any of the call reports. It would be great if these calls still were reported on, on the UC side of RingCentral, even after the associated toll free number was CCRN'd.