#41. When dimensioning call center agents receive calls from infinite sources (PSTN callers) where calls are queued during the busy hour, the traffic model typically used is:
#42. Exhibit: During all calls from IP Phone A to Analog Phone D the user at IP Phone A hears persistent echo. During all calls from IP Phone A to IP Phone C no echo is heard. What is the best way to resolve the echo issue in the equipment under your control? (Note: Everything is under your control except for the PSTN)