I suspect there's quite a bit of overlap in the types. I am definitely not a 'workaholic' according to the usual definition of the term, but I -do- prefer to just get the facts and finish the call as quickly as possible. I'm not there to make a friend, I'm there to solve a problem.

This was actually true no matter which side of the conversation I was on. And some callers definitely appreciated that when I was solving their problems.

However, I did have enough sense to know when to just let a customer rant and deal with their emotions as the problem, instead of the actual initial problem they had.

Also, my current company used to do personality tests before hiring someone so that they could get the right attitude in the company. They stopped doing that a while back, but that initial seed of pleasant attitudes has persisted since those initial people are now doing the hiring. It has worked out really, really well for employees and clients alike.