14. A PABX provides queuing and automatic call back facility for outgoing calls. If there are 20 outgoing call requests per hour and if the average call duration is three minutes, how many trunks are needed to ensure delays less than 30 minutes for 90 per cent of the requests?
14. A PABX provides queuing and automatic call back facility for outgoing calls. If there are 20 outgoing call requests per hour and if the average call duration is three minutes, how many trunks are needed to ensure delays less than 30 minutes for 90 per cent of the requests?
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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