Call Accounting or Telephone Call Accounting is the set of procedures that allows the analysis of phone charges incurred by a company or a public company, through the use of a telephone exchange also said PBX (Private Branch Exchange). The Call Accounting is necessary because the traffic data related on telephone trunks of one or more telephone carrier can not be attributed directly to the individual extension user that generated by means of data supplied by the carrier. In fact, the information provided by telephone carriers typically provide traffic data made on the single trunk analog, ISDN (BRI) or primary rate (PRI). Therefore in order to share the cost incurred for telephone calls between the different cost centers that have been identified within the corporate structure is essential to be able to give each extension the related cost for the calls made.

Another advantage offered by call accounting systems is that you can also collect data for outgoing calls and missed calls and incoming and internal answered and unanswered calls. This allows you to analyze the data on telephone traffic received by external users or trafficking conducted among users of the PBX extensions. In some cases, in addition to query functions with filters related to the period, time slot, external number, duration, cost, etc. ... or sorting options that operate on one or more keys, are also features analysis of telephone traffic.

In addition to these standard features BI4Data can analyze important functional parameters of the exchange as Erlang and ASR or average length of conversations, or average waiting times for incoming calls and various other parameters.

It can also provide important information to support decisions such as evaluation if the number of trunks is adequate or sub or oversized, or if there are wide variations in the traffic volume or in its distribution compared to averages of previous periods.