Tele-Communication (Telecom) Terms Glossary and Dictionary
ICPIF: Calculated Planning Impairment Factor loss/delay busyout threshold
Calculated Planning Impairment Factor loss/delay busyout threshold (ICPIF) is an ITU-T G.113 standard for measuring quality of service. ICPIF replaces the old QDU (Quantisation Distortion Units) which were a subjective measurement. ICPIF represents predefined combinations of loss and delay in a VOIP network call. Packet loss and delay determine the threshold for initiating the busyout state. Gateways generate ICPIF values for each VoIP call, and these calculations can be stored for each VoIP call record.