/mcpDescription Range of Values Field Name Designates a unique call identity value that is assigned to each call. The system allocates this identifier independently on each call server. Values get chosen sequentially when a call begins. A value gets assigned for each call, successful or unsuccessful. When Unified Communications Manager restarts, it checks the file for the current globalCallID_callId number and assigns the next 1000th number to the next GlobalCallID_callId. The Global Call ID consists of two fields: globalCallID_callId globalCallID_callManagerId. All records that are associated with a standard call have the same Global Call ID in them. Note For Unified Communications Manager Release 5.x and later releases, the value in the GlobalCallId CDR field survives over Unified Communications Manager restarts. In Release 4.x and earlier releases, although the GlobalCallId field is time-based, the field gets reused under conditions of heavy traffic. Because of this behavior, problems can occur with customer billing applications and the ability of CAR to correlate CMRs with CDRs and to correlate conference call CDRs. For Release 5.x and later releases, GlobalCallId redesign ensures that the field retains a unique value, at least for a certain number of days. Now, the last used globalCallId_callId value gets written to disk periodically (for every x number of calls). The value gets retrieved after a Unified Communications Manager restart, and the new globalCallId_callId value begins with this number plus x. Default - Ensure that this field is populated. Positive Integer globalCallID_callId Identifies the originating leg of a call. Be aware that this value is unique within a cluster. If the leg of a call persists across several subcalls and CDRs (as during a call transfer), this value remains constant. Default - Ensure that this field is populated. Positive Integer origLegCallIdentifier Identifies the date and time when the user goes off the hook or the date and time that the H.323 SETUP message is received for an incoming call. The time gets stored as UTC. Default - Ensure that this field is populated. Integer dateTimeOrigination Identifies the server, or node within a cluster, to which the originator of the call is registered at the time that the call is made. Default - Ensure that this field is populated. Positive Integer origNodeId For calls that originate at a gateway, this field indicates the B-channel number of the T1, PRI, or BRI trunk where the call originates, or a zero value for FXS or FXO trunks. For H.323 gateways, the span number remains unknown, and this field contains the call leg ID of the originator. For calls that did not originate at a gateway, the value specifies zero. Default - This field gets populated based on these rules. 0, Positive Integer origSpan Call Reporting and Billing Administration Guide for Cisco Unified Communications Manager, Release 15 and SUs 214 CDR Records CDR Field Descriptions