portant part of any PABX is the measurement of the traffic that it handles and the call 34.6.3 Incoming call handling logging software does this. Generally call logging software will monitor the start of any call, who originated the call, where the call Incoming call handling software caters for a number of features just was destined i.e. the dialled digits, the duration of the call and the like the outgoing call handling. In the traditional PABX an incoming date and time of either the start or finish of the call. call signal was presented to the incoming call handling software and The PABX will normally only provide a cyclical buffer memory the software placed the call in a queue waiting for a telephone of a few calls, as it is normally anticipated that the user will attach operator to answer the call before presenting it to the telephone or a printer or, more usefully, some form of external storage medium terminal handling software. Although this basic function still re- to record all the calls made in a given time period and then analyse mains the software is required to handle much more complex tasks. them off line on a PC. The same logging software is also used for The call may be a DDI call and therefore routed directly to the users incoming calls but unless the incoming line is DASS2 with calling telephone, or this may be a group of telephones, such as a service number identification then the log is restricted to the called exten- desk, where a number of users may be programmed to accept the sion. This can give time to answer by the extension, as well as the 34/14 PABX and key systems follow on call. That is, the extension transfers the call to another 34.8.1 Requirements extension plus the call duration and time and date of the call. System reports are varied but the software will be expected to The main requirements for the cordless sub-system to support the generate an equipment map showing the location of all the circuits essential cordless PABX features are: within the system and whether the circuit i