I want to compare, for a moment, the two basic jobs I have at my company. I work both customer service and sales, and, in my company’s eyes, they’re two very different things. (To the point that I have to operate in different desktop windows and browsers.)
The sales side is fine: you call people, try and convince them to start a fundraiser. You follow up. It’s tedious, but it’s rarely surprising, challenging, or interesting. It’s just a numbers game, ask X people for money and a percentage are going to give in. When this was primarily my job, it was no big deal. Annoying and tedious, sure, but no big deal.
The customer service side is stupid. Not because people are jerks, though they are, not because there’s too much work, though there is, but because it’s so unpredictable. I could receive 20 calls in 10 minutes, 2 in an hour, or none. And you have no idea how these people are going to react to you, but you do know that they’re calling because something is not *right* Who *likes* calling a call center? No one I know. So you’re starting off with an unpredictable person, in unpredictable call volumes.