This post is pretty old, I dont know if you are still in the market for ideas, and if you have decided to call you now understand what I am about to tell you. I have had a call center in some fashion for over 15 years. The one thing that you have to remember, and it is like everything else; cold calling, selling, email marketing etc. You can not take it personally and its all in the numbers. First, thing though is your calling Dentists. Very Very hard field. We sell to them alot, you never will get a Dentist to answer the phone, ever. You have to pitch the bitch, you have to understand she will relay the info to the dentist. Your message has to come in a form of an email or fax. The Dentist will not call you back unless very interested. Most of the time it will be relayed between the office manager and you. That is who you want to ask for, the office manager, dont waste your time with the receptionist. Get a script, no need trying to figure out if it will work. Spend 5-10 minutes, typ it out, start calling. It will be an every changing thing. The only way to know if it works is try it out. DONT THINK, JUST DIAL. Dial like crazy, get managers names and call back if not in. Dont leave messages, just a waste of time. Keep redoing your script, after 2 days you will have a good one. Get the DR's email address if possible, you want the email of fax short and sweet. The DR has no time, wet the appetite direct to a page, have the DR call you or email you. More times then not, it will be thru the manager. SO I hate to say it but you will need to present everything to the OM. Sucks but we get alot of dentists as clients. Just do it, think of them as numbers not people, its easier. You will figure out your rate of failure. Meaning how many nos it takes to get that yes. There is your ratio. You know I have to make x calls, to get x sales. Good luck. mess me if you need help.