L3's ErlangB is a highly specialized application, intended for telecom network analysts, pbx resellers, call center operators, and voice service providers. It implements the widely used telecommunications circuit group sizing algorithm, Erlang-B, to predict how many circuits will be necessary to carry a given duration of telephone calls.
To operate the software, enter the values for busy hour offered traffic (in minutes) and the desired grade of service (probability of call blocking, where .02 = P02 = 2%). Tap the Calculate button and the number of circuits needed will be displayed. Tap Details to display a grid showing the carried minutes for each circuit. Tap Chart to get a color graph of the incremental and cumulative minutes of the group. Tap Export to write the circuit detail grid to a Palm Memo, for easy sync and paste to desktop applications. The Memo's title will be set according to the name specified in the Export Name entry area.