The Whozz Calling? and Scout monitoring units capture all details of inbound and outbound calls and delivers this information to a computer.

The monitoring unit is designed to collect call data from standard telephone lines (trunk or CO lines) coming into your building. It will not work properly if connected to extensions (or station) lines coming from a telephone switch. Connect the unit only to standard local loop start or analog Centrex phone lines. It is not designed for ISDN, T1, DID, Digital Centrex, or Ground Start lines

The unit connects to your computer through a serial port. The serial port must be free of COM Port and IRQ conflicts and dedicated to the monitoring unit. The unit can work with any serial port regardless of the COM number and/or IRQ it is using. Multiple Whozz Calling? units can be connected together (daisy chained) in order to monitor up to 40 telephone lines on one serial port. Whozz Calling? with Memory and Scout unit cannot be daisy chained.