These records are crucial for various purposes within a telecommunication company and beyond. 

• Recorded Information: A CDR typically includes details such as the time the call started and ended, the duration of the call, the phone numbers of the caller and the recipient, the billing phone number, and other information related to the call, such as the route taken by the call through the network.

• Billing and Accounting: One of the primary uses of CDRs is for billing purposes. They help telecommunication companies charge customers for the services used, including call charges and data usage.

• Network Management: CDRs are also used for network management and planning. Analysis of these records can help in understanding traffic patterns, peak hours, and network load, aiding in efficient network management and capacity planning.

• Fraud Detection: By analyzing call patterns and other details in CDRs, telecommunications companies can detect unusual activities that might indicate fraud, such as call spoofing or unauthorized use.

• Legal and Regulatory Compliance: CDRs can be used to comply with legal and regulatory requirements. In some cases, they may be requested by law enforcement for investigative purposes, subject to legal processes and privacy regulations.

• Quality of Service Monitoring: CDRs can be analyzed to monitor the quality of service provided to customers, identifying issues like dropped calls or network failures.

CDRs are a fundamental aspect of telecommunications operations, providing a wealth of data that supports billing, network management, customer service, and compliance with legal and regulatory requirements.