Courtesy, in my opinion, is not soliciting a client. Sales people have a job to do, sure. But if I am interested in a new mail server, I'll stick my nose out and ask THEM for more information.
Just assuming that I need new case management software just because we are a law firm and not on your client list, is actually rather rude in my opinion. If you are going to cold call me, be prepared to be ignored unless I asked you for the information. If you do happen to have something that solves a problem, leave me a message. I'll let you know.
Having someone call you at least 1x a day for 2 weeks, then be incredulous that you didn't need their software when they finally get you... Well, in my opinion, if they did that to me, they certainly didn't show ME much courtesy.
Also, it isn't a sales person's job to "educate" me on MY OWN network. Being that 4 out of 5 sales guys can barely turn on a computer, how are they supposed to hold a candle to an IT person long enough to "educate" them?
Most will pick up "buzz words". When I had worked for a telemarketing-for-hire company, they had us doing this. We were asked by Citrix to call and survey their current customers once. Our script called for us to use the words "flavors" of Linux, even though I was the only one of about 20 that actually had even HEARD of Linux prior to then, nevermind what flavor was supposed to be. But it was supposed to "bring you closer" to the IT people you were polling.
With Honeywell, we were to rattle off a few facts about CCTV and the like. It was just numbers and words to most people. If they were asked a question, that became quickly apparent.
[i]Note: I do not claim to know everything. But I don't need someone to tell me that we don't have VOIP and we should have it, with all it's features a 30-person firm isn't going to need at a cost we don't really want. I also don't think ANYone will appreciate an outside person (especially with little (or no) IT background) telling them that their network should be protected with this bit of software, and not with a company it already has and has used for years.
(Unless they've been asked by me or my co-worker for information, of course.) [/i]