Abstract: A billing method and system include discounting a customer's billing for telephone calls completed in a wide area centrex/PBX network, which includes an abbreviated dialing plan. A service control point (SCP) determines a call type code based upon a calling station and a called station of a telephone call. The SCP determines whether the call type code is eligible for discounted billing. When the call type code is eligible, the SCP generates a unique billing record that is forwarded to a service switching point (SSP). The SSP receives the forwarded unique billing record and modifies the billing record to indicate that a discount should be applied to the billing for the call when the call is completed. When the SSP does not receive the unique billing record, it creates a normal billing record.

Abstract: A method and system for generating customer reports based on station message detail recording (SMDR) data includes a service control point (SCP) in a public switched telecommunications network (PSTN). The service control point samples calling data from multiple service switching points for calls originating from a private customer network, including centrex and PBX systems. The service control point interfaces with a front end processor and transmits the calling data. The front end processor formats the calling data into SMDR data, which is transmitted to a host central processing unit. The host generates reports regarding the SMDR calling data, the reports being accessible by a customer via a connection to a private customer network.

Abstract: A method and system include screening and routing telephone calls, generating calling data reports and discounting billing for a customer's wide area centrex/PBX network, which includes an abbreviated dialing plan. A service control point (SCP) determines whether to block an outgoing call based on stored blocking tables and a privilege class of the calling station. The SCP determines whether to route the call through a private trunk group from a host switch to a private facility, and through an alternative trunk group when the private trunk group is unavailable. The SCP determines whether the call is eligible for discounted billing and generates a billing record, which is modified by a service switching point to indicate the discount. The SCP also samples calling data from service switching points and transmits the sampled data to a front end processor for formatting into station message detail recording (SMDR) data.