Altigen Call Detail Reporting Manual page 34

Past and Present CDR
Rate Tables.
AltiWare 4.0 and higher does not support rate tables,
unlike previous releases. This function must now be obtained by external
applications found in reporting tools. The CDR database has sufficient
information to support rate and charge evaluation by external applications.
Migration.
If you are upgrading from OE 3.5, you will not be provided
with any conversion tool for CDR records stored under OE 3.5 or prior
releases.
If you are upgrading from OE 4.0, you can convert ILS data using a
conversion tool called AltiDBReader. Instructions on using and installing
AltiDBReader are located in the AltiWare System Installation and
Administration Manual.
Extension-to-Extension Call Reporting.
CDR Search includes
records for internal calls between extensions, and from internal extensions
to workgroups. This is in addition to information on incoming and outgoing
trunk calls.
SMDR Cautions.
SMDR is a Mitel-defined data schema for delivering
basic call information out the RS232 serial port to external recording and
reporting applications. While AltiGen has provided an SMDR interface,
it has had many problems in terms of accuracy and consistency of
information delivery. SMDR is not CDR. CDR is historical, and is a
database containing call records. SMDR is a real time delivery of a subset
of this information. We recommend that you use the new CDR, not the
SMDR, for reporting and billing applications. No improvements or
corrections have been made to SMDR.
26 CDR Manual