I'm trying very very hard to win a radio contest this week and it feels like I'm too slow with hanging up and redialing. I just hit the red "end" button, wait a sec and hit the green "send" button a couple times. Sometimes this makes my BB freeze up
I find that saving the number as a speed dial on the phone is a bit faster. I have my local radio station's number set as #9, so all I have to do is press and hold 9, then hit the red end call button, then hit and hold 9 again, usually works faster and I have less freeze ups that way.
An ex girlfriend of mine won ~6 radio contest in the two years we dated. She did it by memorizing the phone number and calling from her land line. I was astonished every time.. Just goes to show it's very possible without even having the number programmed in your phone.