CPNI meaning in Business ?

Customer proprietary network information (CPNI) is the data collected by telecommunications companies about a consumer's telephone calls. It includes the time, date, duration and destination number of each call, the type of network a consumer subscribes to, and any other information that appears on the consumer's telephone bill.

Telemarketers or customer service agents working on behalf of telephone companies must go through an additional customer authentication layer (typically a PIN, or last four of the stored payment method) and ask for the customer's consent prior to accessing the billing information or before using or sharing that information for any purpose, including but not limited to, offering an up-sell or any change of services. Usually, this is done at the beginning of a call from the telemarketer to the telephone subscriber.