How does call accounting work?
CDR, SMDR
Regardless of their size, most telephone systems output Call Detail Records (CDR). Generally, these get created at the end of a call, but on some phone systems the data is available during the call.
This data is output from the phone system by a serial link known as the Station Message Detail Recording port (SMDR). Some of the details included in call records are: Time, Date, Call Duration, Number dialed, Caller ID information, Extension, Line/trunk location, Cost, Call completion status.
Call accounting Buffer
Call Accounting software reads the call records (SMDR, CDR) that are produced by your PBX or key system and then saved to a PC or buffer box.
The call records are then reformatted and sorted on the PC or downloaded from the buffer box, and saved in a database format. Call records can be imported into a spreadsheet program, like Excel, for easy reading.
The call accounting software then analyzes the data and generates standard reports included with the software; or you can create custom reports of specific information grouped in a format that fits your criteria. (e.g. the calling habits of the Regional Sales Manager).
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