How do you warm up your voice and vocal chords in order to get the best out of y

Question:

How do you warm up your voice and vocal chords in order to get the best out of your voice when singing?

When you're about to sing, sometimes your voice sounds rusty and worn out. Somebody told me that it's because you need to warm up your vioce using soft vocal tones and sounds, but they didn't know actually how to. Does anyone have any idea on what i'm on about and how to help me? thanks so much

Best Answer - Chosen by Asker: go thru the do re me fa sol la ti doh routine a few times..each time add just a touch of volume...not enough to hurt your throat, just enough to loosen it up.....hope this helps.....good luck...