Detailed description of Call Detail Recording

Last Updated : Oct 30, 2012 |

Use the Call Detail Recording (CDR) feature to record information on incoming, outgoing, and tandem calls for each trunk group that you administer for CDR, including auxiliary trunks. The system records information on each trunk-group call and each station-to-station call.

You can also request that CDR record information on:

  • Temporary signaling connections (TSCs) that involve trunks

  • Calls that use loudspeaker paging

  • Calls to which account code dialing or a Feature Access Code (FAC) apply

  • Ineffective call attempts

    If you request that the system record information about ineffective call attempts, you increase the number of calls that the system records. However, the request to record ineffective call attempts can also help you to increase security, because the system records call attempts that are blocked because of insufficient calling privileges.

    Information on ineffective call attempts can also show you that your users cannot make calls because all the trunks on your system are busy.

  • The audio service link calls that the switch uses for IP softphones that are set up as telecommuter IP softphones.

    An IP softphone can use one audio service link to make many short calls. The system shows these many short calls as one long call on the CDR reports.

Some call accounting systems do not support all the information that CDR offers. See your Avaya representative for information on how CDR operates on your system.

Caution:

When migrating a platform from a legacy system to a Linux-based system of Communication Manager 3.0 or newer, where both the old and new systems use CDR, ensure that the older CDR parsing scripts correctly use all of the characters identified in each of the fields contained in the applicable format table (see CDR data format - TELESEER for Communication Manager 4.0 or later through CDR data format - int-ISDN for Communication Manager 4.0 or later).