I need to introduce myself to new clients about my product & the company when I call them over the phone .

Hello, would be a good opener.

Curlyben nailed it, or "hello this (your name is with company name.

People are conditioned to 'sales' phone calls and really do not want to sit through some cutesy message or someone that gets too personal immediately.

The above posters are correct. Say 'hello' and get to the point, either there is interest or there is not. Simply talk as if you were having a professional conversation in person. Briefly tell them who you are, what you do and ask them if there is any interest. (period)

Be honest and sincere. You may get a lot of 'no interest' and that is fine, you want to talk to those that are.

Trying to talk them into something will only irritate. Spend your time with those that are interested spending it with others is not productive.

Stringer

Agreed with parttime. A simple "Hello, I am ...... with .....company" intro should be great. Avoid unnecessarily lengthy openings and sweet talks. Get to the point and make it simple.