This document describes the changes to the call detail records (CDRs) and call management records (CMRs) for Cisco Unified CallManager Release 5.1(1).
The only change for Cisco Unified CallManager Release 5.1(1) is the addition of a single new codec type, Media_Payload_AAC = 42, as noted in the following table.
Codec Types
Table 29-1 contains the compression and payload types that may appear in the codec fields.