PCMs can give the driver some good info in the morning. Heads up on what's new at UPS, DIAD upgrades, our standing compared to other centers, etc. etc. etc. Mostly. I find it a good time to talk with fellow drivers who, for the most part, I won't see until the next morning, at the next PCM. This is a good time to exchange info on how they handle certain driving situations, if the ban on ordering new clothes is over, new restaurants out there, what did they do on the weekend, etc., etc., etc.
And the reason I do talk and not listen, is because who can hear what they are saying in the first place? There is such a loud echo or reverb no one can hear anything unless you are standing right next to speaker.