Winters that number is the business line to union broadcasting, don't call that number. As nicname said they don't give the listener line out very much, they really don't take many calls. I don't listen to Petro much and I've never heard a caller on his show, and Keitzman usually only takes calls between 2:20-3:00 and a random call here or there. If he doesn't mention KSU in his monologue the odds are 50/50 the call screener will even allow a K-State call on the air until they are mentioned.
When they give the number out I'll post it.