If you don’t know me and I don’t know you, don’t call me up and shout, “Hey Paul! It’s Zach Flack with Equity Staffing!” as though I might have been sitting by the phone thinking “Wouldn’t it be a little slice of heaven if I got a call from Zach Flack over at Equity Staffing?”
If I don’t know you, but I might recognize your name, then possibly some heightened level of emotion is warranted, e.g., “Hey Paul! It’s Bill Gates with Microsoft!” or “Hey Paul! It’s Pope Francis at the Vatican!”
Otherwise, tone it down and stop annoying people.